Year	% of profit
2005	52.3
2006	52.3
2007	52.5
2008	52.5
2009	52.5
2010	52.5
2011	52.5
2012	51.9
2013	51.6
2014	49.7
2015	49.7
2016	49.7
2017	49.7
2018	49.7
2019	49.7