Year % of commercial profits 2005 16.429411764705883 2006 16.476470588235294 2007 16.147368421052636 2008 16.12631578947369 2009 16.205263157894738 2010 16.178947368421053 2011 15.970000000000002 2012 15.714285714285714 2013 15.600000000000001 2014 15.723809523809527 2015 15.828571428571433 2016 15.961904761904767 2017 16.176190476190477 2018 16.30476190476191 2019 16.16666666666667