In 2015 according to BlackDuck the GPLv2 lost its first position on the MIT license and is now second, the GPLv3 dropped to fourth place while the Apache license kept its third position.[6]
Reference 1: GPLv2, GPLv3, LGPL 2.1, LGPL 3.0 and GPL family together.
Reference 2: 2008-05-08[129], 2009-03-11[130], 2011-11-22[120], 2013-08-12[13], 2015-11-19[6], 2016-06-06[131] and 2017-01-02[132].
Source: http://en.wikipedia.org/wiki/GNU_General_Public_License
Reference 2: 2008-05-08[129], 2009-03-11[130], 2011-11-22[120], 2013-08-12[13], 2015-11-19[6], 2016-06-06[131] and 2017-01-02[132].
Source: http://en.wikipedia.org/wiki/GNU_General_Public_License
