Year % of commercial profits 2005 15.227777777777778 2006 15.036263736263738 2007 14.836263736263739 2008 14.871428571428568 2009 14.411956521739127 2010 14.38152173913043 2011 14.344565217391303 2012 14.161702127659575 2013 14.533333333333337 2014 14.459803921568628 2015 14.418627450980393 2016 14.504901960784311 2017 14.403921568627451 2018 14.512745098039215 2019 14.730392156862747