Year % of commercial profits 2005 11.790566037735848 2006 11.760377358490565 2007 11.668518518518518 2008 11.681481481481478 2009 11.775925925925925 2010 11.78888888888889 2011 11.855555555555556 2012 11.664285714285715 2013 11.99016393442623 2014 12.075409836065573 2015 12.157377049180328 2016 12.231147540983606 2017 12.36393442622951 2018 12.488524590163934 2019 12.585245901639345