Year	% of profit
2005	43.8
2006	43.8
2007	43.9
2008	44.4
2009	44.4
2010	44.4
2011	44.9
2012	44.9
2013	44.3
2014	44.3
2015	43.9
2016	43.9
2017	44.1
2018	44
2019	43.8