Year % of commercial profits 2005 10 2006 6.2 2007 6.3 2008 7.9 2009 8 2010 7.1 2011 6.5 2012 0 2013 1.8 2014 1.6 2015 1.7 2016 1.8 2017 1.5 2018 1.7 2019 2.1