Year % of commercial profits 2005 14.8 2006 14.8 2007 14.8 2008 12.7 2009 15.7 2010 15.7 2011 15.7 2012 15.7 2013 15.7 2014 15.7 2015 13.1 2016 13.1 2017 17 2018 13.1 2019 13.6