Year % of commercial profits 2005 3.7100000000000004 2006 3.411538461538462 2007 3.8436363636363637 2008 3.0642857142857154 2009 3.0803571428571432 2010 2.935714285714286 2011 3.0103448275862057 2012 3.189830508474575 2013 2.8532258064516136 2014 2.8580645161290326 2015 2.8241935483870972 2016 2.7112903225806457 2017 2.745161290322581 2018 2.7047619047619045 2019 2.7206349206349203