Year	% of profit
2005	49.27419354838709
2006	46.934374999999996
2007	45.946875
2008	45.3375
2009	43.225
2010	41.55312499999999
2011	40.12647058823529
2012	39.64705882352941
2013	40.244444444444454
2014	40.31666666666667
2015	39.827777777777776
2016	39.70000000000001
2017	38.78611111111111
2018	38.786111111111104
2019	38.830555555555556