Year % of commercial profits 2005 26.4 2006 26.4 2007 26.4 2008 26.4 2009 21.6 2010 22.5 2011 22.5 2012 22.5 2013 21.2 2014 21.2 2015 21.2 2016 21.2 2017 21.2 2018 21.2 2019 21.2