Year	% of commercial profits
2005	31.7
2006	31.7
2007	31.7
2008	31.7
2009	31.7
2010	31.7
2011	31.7
2012	32.2
2013	32
2014	31
2015	29.3
2016	27.7
2017	28
2018	28.3
2019	28.3