Year % of commercial profits 2005 15.080000000000002 2006 15.7 2007 15.86 2008 16.119999999999997 2009 15.780000000000001 2010 14.64 2011 15.180000000000001 2012 12.5 2013 17.7 2014 17.4625 2015 17.275 2016 17.275000000000002 2017 17.337500000000002 2018 16.9 2019 16.7125