Year	% of commercial profits
2005	19.5
2006	19.1
2007	19.1
2008	19.1
2009	19.1
2010	17.9
2011	17.9
2012	17.9
2013	17.9
2014	15.4
2015	20.5
2016	20.5
2017	20.5
2018	20.3
2019	20.3