diff --git a/README.md b/README.md
index a63ce3c..5f9033e 100644
--- a/README.md
+++ b/README.md
@@ -214,6 +214,13 @@ Benchmark and compare different pieces of code.
         fast => sub{ ... },
     }, 10000;
 
+    $ perl -Me -e '$v = 333; n { concat => sub { 111 . $v }, interp => sub { "111$v" }, list => sub { 111,$v } }, 100000000'
+
+              Rate interp concat   list
+    interp  55248619/s     --    -6%   -62%
+    concat  58479532/s     6%     --   -60%
+    list   144927536/s   162%   148%     --
+
 ## Format Conversions
 
 ### j
diff --git a/lib/e.pm b/lib/e.pm
index 7b171d0..a70ae6d 100644
--- a/lib/e.pm
+++ b/lib/e.pm
@@ -232,6 +232,13 @@ Benchmark and compare different pieces of code.
         fast => sub{ ... },
     }, 10000;
 
+    $ perl -Me -e '$v = 333; n { concat => sub { 111 . $v }, interp => sub { "111$v" }, list => sub { 111,$v } }, 100000000'
+
+              Rate interp concat   list
+    interp  55248619/s     --    -6%   -62%
+    concat  58479532/s     6%     --   -60%
+    list   144927536/s   162%   148%     --
+
 =cut
 
 =head2 Format Conversions