diff --git a/.Rbuildignore b/.Rbuildignore
index a2ab07fea..77fa28224 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -6,3 +6,4 @@
 ^revdep-dev$
 ^appveyor\.yml$
 ^man-roxygen$
+^revdep$
diff --git a/.gitignore b/.gitignore
index 09a72cbe9..76847eaee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 .Rhistory
 .RData
 inst/doc
+/revdep/.cache.rds
diff --git a/DESCRIPTION b/DESCRIPTION
index 2cd89e63c..b5e5b8ec9 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,24 +1,24 @@
 Package: DBItest
 Title: Testing 'DBI' Back Ends
-Version: 1.3-11
+Version: 1.4
 Date: 2016-12-02
 Authors@R: c( person(given = "Kirill", family = "Müller", role =
         c("aut", "cre"), email = "krlmlr+r@mailbox.org"),
         person("RStudio", role = "cph") )
 Description: A helper that tests 'DBI' back ends for conformity
-    to the interface, currently work in progress.
+    to the interface.
 Depends: 
     R (>= 3.0.0)
 Imports: 
+    DBI (>= 0.4-9),
     methods,
     R6,
     testthat (>= 1.0.2),
-    withr,
-    DBI (>= 0.4-9)
+    withr
 Suggests: 
     devtools,
-    lintr,
     knitr,
+    lintr,
     rmarkdown
 License: LGPL (>= 2)
 LazyData: true
diff --git a/NEWS.md b/NEWS.md
index 14a7e143d..21d6f4320 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,68 +1,35 @@
-## DBItest 1.3-11 (2016-12-02)
+# DBItest 1.4 (2016-12-02)
 
-- Not testing for presence of `max.connections` element in `dbGetInfo(Driver)` (rstats-db/DBI#56).
+## DBI specification
 
+- Use markdown in documentation.
+- Description of parametrized queries and statements (#88).
+- New hidden `DBIspec-wip` page for work-in-progress documentation.
+- Get rid of "Format" and "Usage" sections, and aliases, in the specs.
 
-## DBItest 1.3-10 (2016-10-06)
+## Tests
 
+- Not testing for presence of `max.connections` element in `dbGetInfo(Driver)` (rstats-db/DBI#56).
 - Test multi-row binding for queries and statements (#96).
 - New `ellipsis` check that verifies that all implemented DBI methods contain `...` in their formals. This excludes `show()` and all methods defined in this or other packages.
-- Align description of binding with code.
-
-
-## DBItest 1.3-9 (2016-10-01)
-
-- Description of parametrized queries and statements (#88).
-- Use markdown in documentation.
-- Refactor tests for `dbBind()`, test is run by `BindTester` class, and behavior is specified by members and by instances of the new `BindTesterExtra` class.
-
-
-## DBItest 1.3-8 (2016-09-17)
-
 - Refactored `bind_` tests to use the new `parameter_pattern` tweak (#95).
 - Rough draft of transaction tests (#36).
-
-
-## DBItest 1.3-7 (2016-09-01)
-
 - New `fetch_zero_rows` test, split from `fetch_premature_close`.
-- The `skip` argument to the `test_()` functions is again evaluated with `perl = TRUE` to support negative lookaheads (#33).
-- Isolate stress tests from main test suite (#92).
-
-
-## DBItest 1.3-6 (2016-08-11)
-
-- Use `dbSendStatement()` and `dbExecute()` where appropriate.
 - The "compliance" test tests that the backend package exports exactly one subclass of each DBI virtual class.
-
-
-## DBItest 1.3-5 (2016-08-07)
-
-- New hidden `DBIspec-wip` page for work-in-progress documentation.
-
-
-## DBItest 1.3-4 (2016-08-06)
-
-- Add machinery to automatically copy `DBIspec.Rd` to a local checkout of the DBI package (rstats-db/DBI#129), with message indicating if documentation was updated. Two passes may be necessary to arrive to a stable state.
-- Get rid of "Format" and "Usage" sections, and aliases, in the specs.
-
-
-## DBItest 1.3-3 (2016-08-03)
-
 - Document and enhance test for `dbDataType("DBIDriver", "ANY")` (#88).
+- Minor corrections for "bind" tests.
 
+## Internal
 
-## DBItest 1.3-2 (2016-07-31)
-
+- Isolate stress tests from main test suite (#92).
+- Refactor test specification in smaller modules, isolated from actual test execution (#81). This breaks the documentation of the tests, which will be substituted by a DBI specification in prose.
+- Align description of binding with code.
+- Refactor tests for `dbBind()`, test is run by `BindTester` class, and behavior is specified by members and by instances of the new `BindTesterExtra` class.
+- The `skip` argument to the `test_()` functions is again evaluated with `perl = TRUE` to support negative lookaheads (#33).
+- Use `dbSendStatement()` and `dbExecute()` where appropriate.
 - Avoid empty subsections in Rd documentation to satisfy `R CMD check` (#81).
 
 
-## DBItest 1.3-1 (2016-07-31)
-
-- Refactor test specification in smaller modules, isolated from actual test execution (#81). This breaks the documentation of the tests, which will substituted by a DBI specification in prose.
-- Minor corrections for "bind" tests.
-
-
 # DBItest 1.3 (2016-07-07)
 
 
diff --git a/R/spec-meta-bind-.R b/R/spec-meta-bind-.R
index 7b23829bf..cc46e75c7 100644
--- a/R/spec-meta-bind-.R
+++ b/R/spec-meta-bind-.R
@@ -39,7 +39,8 @@ new_extra_imp <- function(extra) {
   else if (length(extra) == 1)
     new_extra_imp_one(extra)
   else {
-    BindTesterExtraMulti$new(lapply(extra, new_extra_imp_one))
+    stop("need BindTesterExtraMulti")
+    # BindTesterExtraMulti$new(lapply(extra, new_extra_imp_one))
   }
 }
 
@@ -176,7 +177,7 @@ BindTester <- R6::R6Class(
     initialize = function(con) {
       self$con <- con
     },
-    run = run_bind_tester,
+    run = run_bind_tester$fun,
 
     con = NULL,
     placeholder = NULL,
diff --git a/R/spec-meta-bind.R b/R/spec-meta-bind.R
index aa3099558..1cf80bfc0 100644
--- a/R/spec-meta-bind.R
+++ b/R/spec-meta-bind.R
@@ -1,3 +1,5 @@
+run_bind_tester <- list()
+
 #' @template dbispec-sub
 #' @format NULL
 #' @section Parametrized queries and statements:
@@ -27,7 +29,7 @@
 #'
 #' \pkg{DBI} clients execute parametrized statements as follows:
 #'
-run_bind_tester <- function() {
+run_bind_tester$fun <- function() {
   if (extra_obj$requires_names() && is.null(names(placeholder))) {
     # wrong_name test only valid for named placeholders
     return()
diff --git a/cran-comments.md b/cran-comments.md
index 7e9760272..678f1c7c7 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -1,13 +1,16 @@
 ## Test environments
-* ubuntu 16.04, R 3.3.1
-* ubuntu 12.04 (on travis-ci), R 3.3.1
+* local ubuntu 16.10, R 3.3.2
+* ubuntu 12.04 (on travis-ci), R release, devel, and oldrel
 * win-builder (devel and release)
 
 ## R CMD check results
 
-There were no ERRORs, WARNINGs or NOTEs. 
+Changes to the package's description as requested by Uwe Ligges. I hope a same-version update is okay here.
 
 ## Reverse dependencies
 
-* I checked the single reverse dependency, `bigrquery`, locally.
+* I checked the two reverse dependencies `bigrquery` and `RSQLite`.
   There were no ERRORs, WARNINGs or NOTEs.
+
+* RSQLite 1.1 on OS X seems to depend on this release, could you please trigger
+  a rebuild of RSQLite 1.1 once DBItest 1.4 has been built for OS X?
diff --git a/revdep/README-r-1.4.md b/revdep/README-r-1.4.md
new file mode 100644
index 000000000..ed140ffd4
--- /dev/null
+++ b/revdep/README-r-1.4.md
@@ -0,0 +1,56 @@
+# Setup
+
+## Platform
+
+|setting  |value                        |
+|:--------|:----------------------------|
+|version  |R version 3.3.2 (2016-10-31) |
+|system   |x86_64, linux-gnu            |
+|ui       |X11                          |
+|language |(EN)                         |
+|collate  |en_US.UTF-8                  |
+|tz       |Universal                    |
+|date     |2016-12-02                   |
+
+## Packages
+
+|package   |*  |version     |date       |source                             |
+|:---------|:--|:-----------|:----------|:----------------------------------|
+|DBI       |   |0.5-12      |2016-12-02 |Github (rstats-db/DBI@562d091)     |
+|DBItest   |   |1.3-11      |2016-12-02 |Github (rstats-db/DBItest@d89656a) |
+|devtools  |*  |1.12.0.9000 |2016-10-06 |local                              |
+|knitr     |   |1.15.1      |2016-11-22 |cran (@1.15.1)                     |
+|lintr     |   |1.0.0       |2016-04-16 |cran (@1.0.0)                      |
+|R6        |   |2.2.0       |2016-10-05 |cran (@2.2.0)                      |
+|rmarkdown |   |1.2         |2016-11-21 |cran (@1.2)                        |
+|testthat  |   |1.0.2.9000  |2016-08-25 |Github (hadley/testthat@46d15da)   |
+|withr     |   |1.0.2       |2016-06-20 |CRAN (R 3.3.1)                     |
+
+# Check results
+
+2 packages
+
+|package   |version | errors| warnings| notes|
+|:---------|:-------|------:|--------:|-----:|
+|bigrquery |0.3.0   |      0|        0|     0|
+|RSQLite   |1.1     |      0|        0|     1|
+
+## bigrquery (0.3.0)
+Maintainer: Hadley Wickham <hadley@rstudio.com>  
+Bug reports: https://github.com/rstats-db/bigrquery/issues
+
+0 errors | 0 warnings | 0 notes
+
+## RSQLite (1.1)
+Maintainer: Kirill Müller <krlmlr+r@mailbox.org>  
+Bug reports: https://github.com/rstats-db/RSQLite/issues
+
+0 errors | 0 warnings | 1 note 
+
+```
+checking installed package size ... NOTE
+  installed size is  7.8Mb
+  sub-directories of 1Mb or more:
+    libs   7.2Mb
+```
+
diff --git a/revdep/README-v1.3.md b/revdep/README-v1.3.md
new file mode 100644
index 000000000..f2a0d8b1b
--- /dev/null
+++ b/revdep/README-v1.3.md
@@ -0,0 +1,72 @@
+# Setup
+
+## Platform
+
+|setting  |value                        |
+|:--------|:----------------------------|
+|version  |R version 3.3.2 (2016-10-31) |
+|system   |x86_64, linux-gnu            |
+|ui       |X11                          |
+|language |(EN)                         |
+|collate  |en_US.UTF-8                  |
+|tz       |Universal                    |
+|date     |2016-12-02                   |
+
+## Packages
+
+|package   |*  |version     |date       |source                             |
+|:---------|:--|:-----------|:----------|:----------------------------------|
+|DBI       |   |0.5-12      |2016-12-02 |Github (rstats-db/DBI@562d091)     |
+|DBItest   |   |1.3-11      |2016-12-02 |Github (rstats-db/DBItest@d89656a) |
+|devtools  |*  |1.12.0.9000 |2016-10-06 |local                              |
+|knitr     |   |1.15.1      |2016-11-22 |cran (@1.15.1)                     |
+|lintr     |   |1.0.0       |2016-04-16 |cran (@1.0.0)                      |
+|rmarkdown |   |1.2         |2016-11-21 |cran (@1.2)                        |
+|testthat  |   |1.0.2.9000  |2016-08-25 |Github (hadley/testthat@46d15da)   |
+|withr     |   |1.0.2       |2016-06-20 |CRAN (R 3.3.1)                     |
+
+# Check results
+
+2 packages
+
+|package   |version | errors| warnings| notes|
+|:---------|:-------|------:|--------:|-----:|
+|bigrquery |0.3.0   |      0|        0|     0|
+|RSQLite   |1.1     |      1|        0|     1|
+
+## bigrquery (0.3.0)
+Maintainer: Hadley Wickham <hadley@rstudio.com>  
+Bug reports: https://github.com/rstats-db/bigrquery/issues
+
+0 errors | 0 warnings | 0 notes
+
+## RSQLite (1.1)
+Maintainer: Kirill Müller <krlmlr+r@mailbox.org>  
+Bug reports: https://github.com/rstats-db/RSQLite/issues
+
+1 error  | 0 warnings | 1 note 
+
+```
+checking tests ... ERROR
+Running the tests in ‘tests/testthat.R’ failed.
+Last 13 lines of output:
+  1/1 mismatches
+  [1] 1 - 0 == 1
+  
+  
+  testthat results ================================================================
+  OK: 1214 SKIPPED: 10 FAILED: 2
+  1. Failure: DBItest[RSQLite]: Driver: stress_load_unload (@test-driver.R#139) 
+  2. Failure: DBItest[RSQLite]: Connection: stress_load_connect_unload (@test-connection.R#152) 
+  
+  Error: testthat unit tests failed
+  In addition: Warning message:
+  Unknown tweaks: placeholder_pattern 
+  Execution halted
+
+checking installed package size ... NOTE
+  installed size is  7.8Mb
+  sub-directories of 1Mb or more:
+    libs   7.2Mb
+```
+
diff --git a/revdep/README.md b/revdep/README.md
new file mode 100644
index 000000000..ed140ffd4
--- /dev/null
+++ b/revdep/README.md
@@ -0,0 +1,56 @@
+# Setup
+
+## Platform
+
+|setting  |value                        |
+|:--------|:----------------------------|
+|version  |R version 3.3.2 (2016-10-31) |
+|system   |x86_64, linux-gnu            |
+|ui       |X11                          |
+|language |(EN)                         |
+|collate  |en_US.UTF-8                  |
+|tz       |Universal                    |
+|date     |2016-12-02                   |
+
+## Packages
+
+|package   |*  |version     |date       |source                             |
+|:---------|:--|:-----------|:----------|:----------------------------------|
+|DBI       |   |0.5-12      |2016-12-02 |Github (rstats-db/DBI@562d091)     |
+|DBItest   |   |1.3-11      |2016-12-02 |Github (rstats-db/DBItest@d89656a) |
+|devtools  |*  |1.12.0.9000 |2016-10-06 |local                              |
+|knitr     |   |1.15.1      |2016-11-22 |cran (@1.15.1)                     |
+|lintr     |   |1.0.0       |2016-04-16 |cran (@1.0.0)                      |
+|R6        |   |2.2.0       |2016-10-05 |cran (@2.2.0)                      |
+|rmarkdown |   |1.2         |2016-11-21 |cran (@1.2)                        |
+|testthat  |   |1.0.2.9000  |2016-08-25 |Github (hadley/testthat@46d15da)   |
+|withr     |   |1.0.2       |2016-06-20 |CRAN (R 3.3.1)                     |
+
+# Check results
+
+2 packages
+
+|package   |version | errors| warnings| notes|
+|:---------|:-------|------:|--------:|-----:|
+|bigrquery |0.3.0   |      0|        0|     0|
+|RSQLite   |1.1     |      0|        0|     1|
+
+## bigrquery (0.3.0)
+Maintainer: Hadley Wickham <hadley@rstudio.com>  
+Bug reports: https://github.com/rstats-db/bigrquery/issues
+
+0 errors | 0 warnings | 0 notes
+
+## RSQLite (1.1)
+Maintainer: Kirill Müller <krlmlr+r@mailbox.org>  
+Bug reports: https://github.com/rstats-db/RSQLite/issues
+
+0 errors | 0 warnings | 1 note 
+
+```
+checking installed package size ... NOTE
+  installed size is  7.8Mb
+  sub-directories of 1Mb or more:
+    libs   7.2Mb
+```
+
diff --git a/revdep/check.R b/revdep/check.R
new file mode 100644
index 000000000..e262948c6
--- /dev/null
+++ b/revdep/check.R
@@ -0,0 +1,5 @@
+library("devtools")
+
+revdep_check()
+revdep_check_save_summary()
+revdep_check_print_problems()
diff --git a/revdep/checks.rds b/revdep/checks.rds
new file mode 100644
index 000000000..4fc290c0a
Binary files /dev/null and b/revdep/checks.rds differ
diff --git a/revdep/diff.sh b/revdep/diff.sh
new file mode 100755
index 000000000..fdec0afd2
--- /dev/null
+++ b/revdep/diff.sh
@@ -0,0 +1,63 @@
+#!/bin/sh
+
+set -e
+
+old_tag=v1.3
+branch=$(git symbolic-ref --short HEAD)
+
+cd $(dirname $0)/..
+
+if [ "$old_tag" != "" ]; then
+
+git checkout -- .
+git clean --force -dx
+
+git checkout $branch --
+cp -r revdep revdep-
+
+git checkout $old_tag --
+rm -rf revdep
+mv revdep- revdep
+rm -rf revdep/install
+
+git add revdep
+git commit -m "revdep update for clean state" || true
+
+R -f revdep/check.R
+#echo $old_tag >> revdep/README.md
+
+mv revdep revdep-$old_tag
+git checkout .
+
+git checkout $branch --
+
+rm -rf revdep
+mv revdep-$old_tag revdep
+cp revdep/README.md revdep/README-${old_tag}.md
+cp revdep/problems.md revdep/problems-${old_tag}.md
+git add revdep
+git commit -m "revdep update with $old_tag results"
+
+fi # if [ "$old_tag" != "" ]; then
+
+git clean --force -dx
+rm -rf revdep/install
+git add revdep
+git commit -m "revdep update for clean state" || true
+
+git fetch --all
+git rebase
+git push origin HEAD
+
+R -f revdep/check.R
+#echo $branch >> revdep/README.md
+
+cp revdep/README.md revdep/README-${branch}.md
+cp revdep/problems.md revdep/problems-${branch}.md
+
+git add revdep
+git commit -m "revdep update with $branch results"
+
+git fetch --all
+git rebase
+git push origin HEAD
diff --git a/revdep/problems-r-1.4.md b/revdep/problems-r-1.4.md
new file mode 100644
index 000000000..eaa507b53
--- /dev/null
+++ b/revdep/problems-r-1.4.md
@@ -0,0 +1,35 @@
+# Setup
+
+## Platform
+
+|setting  |value                        |
+|:--------|:----------------------------|
+|version  |R version 3.3.2 (2016-10-31) |
+|system   |x86_64, linux-gnu            |
+|ui       |X11                          |
+|language |(EN)                         |
+|collate  |en_US.UTF-8                  |
+|tz       |Universal                    |
+|date     |2016-12-02                   |
+
+## Packages
+
+|package   |*  |version     |date       |source                             |
+|:---------|:--|:-----------|:----------|:----------------------------------|
+|DBI       |   |0.5-12      |2016-12-02 |Github (rstats-db/DBI@562d091)     |
+|DBItest   |   |1.3-11      |2016-12-02 |Github (rstats-db/DBItest@d89656a) |
+|devtools  |*  |1.12.0.9000 |2016-10-06 |local                              |
+|knitr     |   |1.15.1      |2016-11-22 |cran (@1.15.1)                     |
+|lintr     |   |1.0.0       |2016-04-16 |cran (@1.0.0)                      |
+|R6        |   |2.2.0       |2016-10-05 |cran (@2.2.0)                      |
+|rmarkdown |   |1.2         |2016-11-21 |cran (@1.2)                        |
+|testthat  |   |1.0.2.9000  |2016-08-25 |Github (hadley/testthat@46d15da)   |
+|withr     |   |1.0.2       |2016-06-20 |CRAN (R 3.3.1)                     |
+
+# Check results
+
+0 packages with problems
+
+
+
+
diff --git a/revdep/problems-v1.3.md b/revdep/problems-v1.3.md
new file mode 100644
index 000000000..80e96174d
--- /dev/null
+++ b/revdep/problems-v1.3.md
@@ -0,0 +1,65 @@
+# Setup
+
+## Platform
+
+|setting  |value                        |
+|:--------|:----------------------------|
+|version  |R version 3.3.2 (2016-10-31) |
+|system   |x86_64, linux-gnu            |
+|ui       |X11                          |
+|language |(EN)                         |
+|collate  |en_US.UTF-8                  |
+|tz       |Universal                    |
+|date     |2016-12-02                   |
+
+## Packages
+
+|package   |*  |version     |date       |source                             |
+|:---------|:--|:-----------|:----------|:----------------------------------|
+|DBI       |   |0.5-12      |2016-12-02 |Github (rstats-db/DBI@562d091)     |
+|DBItest   |   |1.3-11      |2016-12-02 |Github (rstats-db/DBItest@d89656a) |
+|devtools  |*  |1.12.0.9000 |2016-10-06 |local                              |
+|knitr     |   |1.15.1      |2016-11-22 |cran (@1.15.1)                     |
+|lintr     |   |1.0.0       |2016-04-16 |cran (@1.0.0)                      |
+|rmarkdown |   |1.2         |2016-11-21 |cran (@1.2)                        |
+|testthat  |   |1.0.2.9000  |2016-08-25 |Github (hadley/testthat@46d15da)   |
+|withr     |   |1.0.2       |2016-06-20 |CRAN (R 3.3.1)                     |
+
+# Check results
+
+1 packages with problems
+
+|package |version | errors| warnings| notes|
+|:-------|:-------|------:|--------:|-----:|
+|RSQLite |1.1     |      1|        0|     1|
+
+## RSQLite (1.1)
+Maintainer: Kirill Müller <krlmlr+r@mailbox.org>  
+Bug reports: https://github.com/rstats-db/RSQLite/issues
+
+1 error  | 0 warnings | 1 note 
+
+```
+checking tests ... ERROR
+Running the tests in ‘tests/testthat.R’ failed.
+Last 13 lines of output:
+  1/1 mismatches
+  [1] 1 - 0 == 1
+  
+  
+  testthat results ================================================================
+  OK: 1214 SKIPPED: 10 FAILED: 2
+  1. Failure: DBItest[RSQLite]: Driver: stress_load_unload (@test-driver.R#139) 
+  2. Failure: DBItest[RSQLite]: Connection: stress_load_connect_unload (@test-connection.R#152) 
+  
+  Error: testthat unit tests failed
+  In addition: Warning message:
+  Unknown tweaks: placeholder_pattern 
+  Execution halted
+
+checking installed package size ... NOTE
+  installed size is  7.8Mb
+  sub-directories of 1Mb or more:
+    libs   7.2Mb
+```
+
diff --git a/revdep/problems.md b/revdep/problems.md
new file mode 100644
index 000000000..eaa507b53
--- /dev/null
+++ b/revdep/problems.md
@@ -0,0 +1,35 @@
+# Setup
+
+## Platform
+
+|setting  |value                        |
+|:--------|:----------------------------|
+|version  |R version 3.3.2 (2016-10-31) |
+|system   |x86_64, linux-gnu            |
+|ui       |X11                          |
+|language |(EN)                         |
+|collate  |en_US.UTF-8                  |
+|tz       |Universal                    |
+|date     |2016-12-02                   |
+
+## Packages
+
+|package   |*  |version     |date       |source                             |
+|:---------|:--|:-----------|:----------|:----------------------------------|
+|DBI       |   |0.5-12      |2016-12-02 |Github (rstats-db/DBI@562d091)     |
+|DBItest   |   |1.3-11      |2016-12-02 |Github (rstats-db/DBItest@d89656a) |
+|devtools  |*  |1.12.0.9000 |2016-10-06 |local                              |
+|knitr     |   |1.15.1      |2016-11-22 |cran (@1.15.1)                     |
+|lintr     |   |1.0.0       |2016-04-16 |cran (@1.0.0)                      |
+|R6        |   |2.2.0       |2016-10-05 |cran (@2.2.0)                      |
+|rmarkdown |   |1.2         |2016-11-21 |cran (@1.2)                        |
+|testthat  |   |1.0.2.9000  |2016-08-25 |Github (hadley/testthat@46d15da)   |
+|withr     |   |1.0.2       |2016-06-20 |CRAN (R 3.3.1)                     |
+
+# Check results
+
+0 packages with problems
+
+
+
+
diff --git a/revdep/timing.md b/revdep/timing.md
new file mode 100644
index 000000000..cae649ab2
--- /dev/null
+++ b/revdep/timing.md
@@ -0,0 +1,8 @@
+# Check times
+
+|   |package   |version | check_time|
+|:--|:---------|:-------|----------:|
+|2  |RSQLite   |1.1     |       18.5|
+|1  |bigrquery |0.3.0   |       15.9|
+
+