Year % of commercial profits 2005 25.4 2006 25.4 2007 25.4 2008 22.6 2009 22.6 2010 22.6 2011 11.5 2012 1.7 2013 1.7 2014 1.7 2015 2.3 2016 2.3 2017 2.3 2018 2.3 2019 2.3