Year	% of profit
2005	76.9
2006	76.9
2007	74.2
2008	74.2
2009	72.5
2010	72.5
2011	72.5
2012	72.4
2013	72.3
2014	73.2
2015	73.2
2016	66
2017	66.1
2018	66.1
2019	66.1