Year % of commercial profits 2005 10.7 2006 10.7 2007 10.7 2008 10.7 2009 10.7 2010 10.7 2011 10.7 2012 5.1 2013 7.8 2014 7.8 2015 7.8 2016 7.8 2017 8.1 2018 8.4 2019 8.8