Year	% of profit
2005	57.57946428571428
2006	56.663157894736834
2007	55.7675438596491
2008	55.062280701754375
2009	53.520869565217374
2010	52.010434782608684
2011	47.80173913043478
2012	46.890677966101705
2013	44.12857142857144
2014	42.01825396825397
2015	42.063492063492085
2016	41.92619047619047
2017	42.09126984126984
2018	42.140476190476214
2019	42.35873015873016