Year	% of commercial profits
2005	33.1
2006	33.1
2007	33.1
2008	30.6
2009	32.1
2010	32.1
2011	32.1
2012	31.4
2013	31.5
2014	31.5
2015	31.5
2016	31.9
2017	31.8
2018	31.6
2019	26.6