Year % of commercial profits 2005 5.7 2006 6.4 2007 8.9 2008 8.5 2009 6.5 2010 7.8 2011 5.8 2012 6 2013 6 2014 5.9 2015 5.9 2016 5.9 2017 5.9 2018 5.9 2019 5.9