Year	% of commercial profits
2005	5.7
2006	5.7
2007	5.7
2008	5.7
2009	5.7
2010	5.7
2011	5.7
2012	5.6
2013	5.6
2014	5.6
2015	5.6
2016	5.6
2017	5.9
2018	6
2019	6