Year % of commercial profits 2005 24.4 2006 23.7 2007 24 2008 24.4 2009 24.9 2010 24.8 2011 24 2012 23.9 2013 21.4 2014 21.7 2015 21.7 2016 21.7 2017 21.7 2018 21.8 2019 21.8