Year % of commercial profits 2005 15.646666666666665 2006 15.40625 2007 13.34375 2008 13.58125 2009 12.088235294117647 2010 8.905882352941177 2011 9.605882352941176 2012 9.441176470588236 2013 8.229411764705883 2014 3.6999999999999997 2015 3.7941176470588234 2016 2.911764705882353 2017 3.0058823529411764 2018 3.1117647058823534 2019 3.070588235294118