Year	% of commercial profits
2005	27.6
2006	27.6
2007	27.6
2008	27.6
2009	27.5
2010	27.5
2011	24.5
2012	24.5
2013	21.4
2014	21.3
2015	21.3
2016	21.3
2017	21.3
2018	19.6
2019	19.6