Year % of commercial profits 2005 19.1 2006 17.1 2007 17 2008 17 2009 17.1 2010 15.9 2011 13.7 2012 15 2013 14.1 2014 14.6 2015 11.8 2016 11.7 2017 11.7 2018 11.9 2019 12.1