Year % of commercial profits 2005 25 2006 25 2007 24.3 2008 24.3 2009 22.8 2010 22.8 2011 18.7 2012 18.6 2013 18.6 2014 19 2015 19.7 2016 19.7 2017 19.7 2018 19.7 2019 19.7