Year	% of profit
2005	59.6
2006	59.6
2007	58.7
2008	58.7
2009	58.7
2010	58.7
2011	59
2012	59.9
2013	60
2014	60.5
2015	60.5
2016	60.5
2017	60.5
2018	60.5
2019	60.5