Year % of commercial profits 2005 8.8 2006 8.8 2007 8.8 2008 8.8 2009 7.7 2010 8.8 2011 8.8 2012 8.8 2013 9.2 2014 9.2 2015 9.2 2016 9.2 2017 9.2 2018 9.2 2019 9.2