Year % of commercial profits 2005 2.2 2006 2.5 2007 2.2 2008 2.2 2009 2.2 2010 0.3 2011 2.2 2012 2.2 2013 2 2014 2.1 2015 2.1 2016 2 2017 2 2018 2.6 2019 2.6