The most commonly used home language for residents aged 6 &amp; over in Taiwan, Penghu, Kinmen &amp; Matsu and the difference in proportion between that &amp; the 2nd commonly used one in 2010. (blue 'cmn' = "Mandarin", green 'nan' = "Hokkien"/"Min Nan", hot-pink 'hak' = "Hakka", burgundy 'map' = austronesian languages) Made with d3.js &amp; Inkscape
<a href="//commons.wikimedia.org/wiki/User:Yoxem" title="User:Yoxem">Yoxem</a>  (base map is made by <a href="//commons.wikimedia.org/w/index.php?title=User:Kanguole&amp;action=edit&amp;redlink=1" class="new" title="User:Kanguole (page does not exist)">Kanguole</a>)
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span> with sources from 2010 population and housing census by DGBAS, Executive Yuan. The base map is from <a href="//commons.wikimedia.org/wiki/File:Taiwan_local_government_map.svg" title="File:Taiwan local government map.svg">Taiwan local government map.svg</a>