Year % of commercial profits 2005 18.39354838709677 2006 16.953124999999996 2007 17.012499999999996 2008 16.525000000000002 2009 15.1375 2010 14.856250000000001 2011 14.63235294117647 2012 14.005882352941176 2013 15.27222222222222 2014 15.369444444444447 2015 14.766666666666667 2016 14.677777777777774 2017 14.836111111111109 2018 14.550000000000002 2019 14.30833333333333