Year	% of profit
2005	80.27297297297297
2006	82.22894736842106
2007	81.01842105263158
2008	79.97631578947369
2009	80.30526315789474
2010	77.47105263157897
2011	65.10263157894735
2012	65.02105263157897
2013	56.63947368421053
2014	51.09736842105263
2015	51.513157894736835
2016	51.88157894736842
2017	52.51052631578948
2018	52.66842105263158
2019	53.28684210526316