Year % of commercial profits 2005 25.738235294117636 2006 25.34571428571428 2007 25.182857142857138 2008 25.162857142857142 2009 24.98 2010 24.762857142857143 2011 24.62 2012 24.685714285714287 2013 24.08157894736842 2014 24.205263157894738 2015 23.923684210526318 2016 23.865789473684213 2017 23.255263157894742 2018 23.40526315789474 2019 23.723684210526315