Year	% of profit
2005	35.8
2006	35.8
2007	35.8
2008	35.8
2009	35.8
2010	35.8
2011	35.8
2012	35.8
2013	35.6
2014	36.1
2015	36.1
2016	47.9
2017	71.4
2018	71.4
2019	71.4