Checking in changes prior to tagging of version 0.20130329.  Changelog diff is:

diff --git a/Changes b/Changes
index fb595c5..db05c1b 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,8 @@
 Revision histories for Perl extension Number::ZipCode::JP

+0.20130329  Fri Mar 29 2013
+     - Update some table classes.
+
 0.20130228  Thu Feb 28 2013
      - Update some table classes.