Year	% of commercial profits
2006	15.3
2007	15.3
2008	15.3
2009	15.3
2010	15.3
2011	15.1
2012	15.4
2013	15.8
2014	15.6
2015	15.5
2016	15.7
2017	15.5
2018	15.6
2019	15.4