Year % of commercial profits 2005 21.254166666666666 2006 21.316 2007 21.416 2008 21.203999999999997 2009 19.555999999999997 2010 18.484 2011 18.324 2012 18.315384615384616 2013 18.46551724137931 2014 18.16551724137931 2015 17.78965517241379 2016 17.8 2017 17.555172413793105 2018 17.57586206896552 2019 17.320689655172416