Year	% of commercial profits
2005	3
2006	3
2007	3
2008	3.4
2009	3.4
2010	3.4
2011	3.2
2012	2.9
2013	2.8
2014	2.8
2015	2.8
2016	2.8
2017	2.8
2018	2.8
2019	2.8