Year % of commercial profits 2005 16.865644171779138 2006 16.574850299401195 2007 16.29705882352941 2008 16.283625730994153 2009 16.00697674418605 2010 15.954069767441867 2011 15.954597701149428 2012 15.965168539325859 2013 16.175661375661395 2014 16.198412698412714 2015 16.21005291005292 2016 16.245502645502654 2017 16.087301587301596 2018 16.176315789473698 2019 16.27789473684211