Year % of commercial profits 2006 37.1 2007 36.8 2008 37.1 2009 37.1 2010 37.1 2011 37.1 2012 2.4 2013 4.5 2014 4.5 2015 7 2016 4.8 2017 4.8 2018 4.8 2019 4.8