Year % of commercial profits 2005 10.2 2006 10.2 2007 10.2 2008 10.2 2009 10.2 2010 10.2 2011 10.2 2012 10.2 2013 10.4 2014 10.4 2015 10.4 2016 12.7 2017 12.7 2018 12.6 2019 12.4