<a href="https://en.wikipedia.org/wiki/Demographic_Transition_Model" class="extiw" title="en:Demographic Transition Model">Demographic Transition Model</a> (DTM) pyramids
<ul><li><a href="//commons.wikimedia.org/wiki/File:Dtm_pyramids.png" title="File:Dtm pyramids.png">Dtm_pyramids.png</a>: User:SuzanneKn</li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:NikNaks93" class="mw-redirect" title="User:NikNaks93">NikNaks93</a> (<a href="//commons.wikimedia.org/wiki/User_talk:NikNaks93" class="mw-redirect" title="User talk:NikNaks93"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Dtm_pyramids.png" title="File:Dtm pyramids.png">Dtm_pyramids.png</a></li></ul>