Kashubian language and nationality (2002 - 2011)
<a href="//commons.wikimedia.org/wiki/User:Cassubia1238" title="User:Cassubia1238">Cassubia1238</a>
CC BY-SA 3.0
Own work, based on <a rel="nofollow" class="external free" href="http://www.stat.gov.pl/gus">http://www.stat.gov.pl/gus</a>