Year % of commercial profits 2005 8.48 2006 8.728124999999999 2007 8.76764705882353 2008 8.811428571428571 2009 8.80857142857143 2010 8.865714285714288 2011 8.918918918918921 2012 9.384210526315792 2013 9.405263157894739 2014 9.452631578947368 2015 9.581578947368422 2016 9.689473684210526 2017 9.75 2018 9.860526315789473 2019 10.139473684210525