Year % of commercial profits 2005 51.8 2006 51.8 2007 52.1 2008 51.3 2009 51.7 2010 51.7 2011 51.7 2012 51.7 2013 51.7 2014 54 2015 53.5 2016 53.5 2017 51.1 2018 49.7 2019 50