Year % of commercial profits 2005 26.03870967741935 2006 25.503125 2007 25.109374999999996 2008 24.990624999999994 2009 24.837499999999995 2010 24.253124999999997 2011 23.494117647058825 2012 23.61470588235294 2013 22.96388888888889 2014 22.963888888888892 2015 23.058333333333337 2016 23.041666666666668 2017 21.936111111111103 2018 22.21944444444444 2019 22.513888888888886