Year % of commercial profits 2005 22.5 2006 25.6 2007 27.5 2008 27.5 2009 27.5 2010 22.6 2011 25.7 2012 1 2013 3 2014 1.4 2015 1.1 2016 1.2 2017 1.2 2018 1.2 2019 1.2