Year	% of profit
2005	47.766666666666666
2006	46.53275862068965
2007	45.63103448275862
2008	44.55172413793104
2009	42.608620689655176
2010	41.5
2011	40.95423728813559
2012	40.60000000000001
2013	41.77727272727271
2014	41.85151515151514
2015	41.762121212121215
2016	41.51060606060606
2017	41.63181818181817
2018	41.67121212121211
2019	41.399999999999984