Year	% of profit
2005	57.87333333333332
2006	55.55625
2007	51.7
2008	51.675000000000004
2009	45.33529411764705
2010	40.61176470588236
2011	39.52352941176471
2012	38.794117647058826
2013	37.52941176470588
2014	33.9
2015	34.6235294117647
2016	33.50588235294117
2017	32.77058823529411
2018	32.41764705882353
2019	32.7235294117647