Year % of commercial profits 2005 15.3 2006 15.3 2007 15.3 2008 9.2 2009 10 2010 11.5 2011 10.3 2012 10.5 2013 10.5 2014 10.3 2015 10.3 2016 10.3 2017 10.3 2018 10.3 2019 10.2