Year	% of profit
2005	8.4
2006	8.4
2007	8.4
2008	8.4
2009	8.4
2010	8.4
2011	8.4
2012	8.4
2013	8.5
2014	8.5
2015	8.5
2016	8.5
2017	8.5
2018	8.5
2019	8.5