Year	% of profit
2005	48.4
2006	48.4
2007	48.4
2008	46.6
2009	44.1
2010	42
2011	30
2012	23.5
2013	25.5
2014	29.8
2015	30.1
2016	30.1
2017	30.1
2018	30.1
2019	30.1