Year % of commercial profits 2005 7.7 2006 7.7 2007 7.7 2008 7.7 2009 7.7 2010 6.5 2011 5 2012 5 2013 4.8 2014 6.4 2015 6.9 2016 5.7 2017 5.7 2018 8.1 2019 8.1