Year % of commercial profits 2005 24.8 2006 24.8 2007 24.8 2008 25.1 2009 25.1 2010 23.9 2011 23.5 2012 23.6 2013 23.2 2014 23.1 2015 23.1 2016 21.4 2017 21.4 2018 22.7 2019 22.7