Year % of commercial profits 2005 21.6 2006 13.6 2007 13.9 2008 14.8 2009 13.8 2010 13.2 2011 13 2012 13.2 2013 13.2 2014 16.4 2015 16.4 2016 14.7 2017 14 2018 13.7 2019 14.4