Year % of commercial profits 2005 28 2006 28 2007 24 2008 23.9 2009 25.1 2010 25.1 2011 25.1 2012 25.2 2013 25.8 2014 25.8 2015 25.8 2016 25.8 2017 25.7 2018 25.7 2019 25.7