Year % of commercial profits 2005 2.3 2006 2.4 2007 2.4 2008 2.8 2009 2.9 2010 2.9 2011 3 2012 2.6 2013 1.8 2014 1.8 2015 1.8 2016 1.8 2017 1.9 2018 2 2019 2