Year % of commercial profits 2005 21.105000000000004 2006 20.1952380952381 2007 20.1952380952381 2008 20.1952380952381 2009 20.176190476190477 2010 20.53809523809524 2011 21.29523809523809 2012 21.290476190476188 2013 20.618181818181817 2014 20.895454545454545 2015 20.90909090909091 2016 20.972727272727273 2017 20.972727272727273 2018 21.022727272727273 2019 21.477272727272727