Year % of commercial profits 2005 40.2 2006 40.1 2007 39.4 2008 39.4 2009 39.4 2010 37.1 2011 34.7 2012 34.9 2013 34.3 2014 34.3 2015 34.3 2016 34.3 2017 34.3 2018 29 2019 26.4