Year	% of profit
2005	54.1
2006	54.1
2007	53.8
2008	53.8
2009	53.9
2010	52.1
2011	52.1
2012	52.1
2013	52.1
2014	49.1
2015	49.1
2016	49.1
2017	49.1
2018	49.1
2019	49.1