Year	% of commercial profits
2005	18.5
2006	18
2007	17.5
2008	17.4
2009	17.7
2010	17.7
2011	18.5
2012	18.5
2013	18.6
2014	18.4
2015	18.3
2016	18.3
2017	18.2
2018	18.2
2019	20