Japanese prefectures by annual population change (Oct 1, 2010 to Sep 30, 2011).
<a href="//commons.wikimedia.org/wiki/User:Ali_Zifan" class="mw-redirect" title="User:Ali Zifan">Ali Zifan</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>.Used a blank map from <a href="//commons.wikimedia.org/wiki/File:Blank_map_of_Japan.svg" title="File:Blank map of Japan.svg">here</a>.