Year % of commercial profits 2005 13.295348837209302 2006 13.038636363636362 2007 13.034090909090908 2008 13.015909090909089 2009 13.024999999999999 2010 13.236363636363636 2011 13.736363636363636 2012 14.015555555555554 2013 13.856521739130434 2014 14.178260869565216 2015 14.249999999999998 2016 14.33478260869565 2017 14.356521739130432 2018 14.395652173913039 2019 14.615217391304345