Year % of commercial profits 2005 13.570454545454544 2006 13.31333333333333 2007 13.30888888888889 2008 13.228888888888887 2009 13.237777777777776 2010 13.444444444444445 2011 13.68666666666666 2012 13.747826086956518 2013 13.597872340425532 2014 13.912765957446808 2015 13.995744680851063 2016 14.07872340425532 2017 14.100000000000001 2018 14.138297872340425 2019 14.353191489361702