Year	% of profit
2005	54.373684210526314
2006	52.13499999999999
2007	48.63999999999999
2008	48.6
2009	43.31428571428571
2010	39.26190476190476
2011	38.285714285714285
2012	37.71904761904763
2013	37.10454545454545
2014	34.26818181818182
2015	34.76818181818182
2016	33.877272727272725
2017	33.309090909090905
2018	33.013636363636365
2019	32.368181818181824