Year	% of profit
2005	40.4
2006	40.4
2007	40.4
2008	40.4
2009	40.4
2010	40.4
2011	40.4
2012	40.4
2013	40.3
2014	40.3
2015	40.3
2016	40.3
2017	42.8
2018	42.7
2019	42.7