Year	% of commercial profits
2005	18.9
2006	18.9
2007	18.9
2008	18
2009	18.2
2010	18.2
2011	17.7
2012	17.7
2013	18
2014	17.5
2015	17.2
2016	16.7
2017	16.7
2018	16.7
2019	16.7