Year	% of commercial profits
2006	9.6
2007	9.6
2008	9.5
2009	7.5
2010	7.5
2011	8
2012	8.3
2013	8.3
2014	8.3
2015	8.3
2016	8.2
2017	8.2
2018	8.3
2019	8.3