Year	% of commercial profits
2005	15.3
2006	15.3
2007	14.9
2008	14.4
2009	14.4
2010	15.1
2011	15.2
2012	14.5
2013	15
2014	15
2015	13.5
2016	12.5
2017	12.5
2018	12.5
2019	12.5