Year % of commercial profits 2005 12.301886792452832 2006 12.09074074074074 2007 12.027777777777779 2008 12.027777777777779 2009 11.890909090909089 2010 12.03090909090909 2011 12.350909090909088 2012 12.417543859649117 2013 12.481034482758622 2014 12.746551724137927 2015 12.765517241379307 2016 12.846551724137923 2017 12.891379310344819 2018 13.068965517241377 2019 13.381034482758617