Year	% of commercial profits
2005	21.6
2006	21.6
2007	21.5
2008	21.5
2009	21.5
2010	21.3
2011	21.2
2012	15.5
2013	21.6
2014	19.7
2015	19.7
2016	19.1
2017	17.9
2018	17.9
2019	17.9