Year	% of profit
2005	53.10368098159511
2006	51.91856287425151
2007	50.72058823529415
2008	49.82105263157898
2009	48.564534883720945
2010	47.24069767441862
2011	44.192528735632216
2012	43.53932584269663
2013	41.8857142857143
2014	40.5804232804233
2015	40.46666666666667
2016	40.31322751322751
2017	40.353968253968254
2018	40.29157894736844
2019	40.38368421052632