Year % of commercial profits 2005 44.3 2006 44 2007 43.4 2008 43.3 2009 43.3 2010 43.3 2011 43.3 2012 43.1 2013 43.1 2014 43.1 2015 43.1 2016 43.1 2017 24.8 2018 29.6 2019 33.8