Year	% of profit
2005	46
2006	45.7
2007	45.7
2008	45.7
2009	45.7
2010	44.4
2011	44.4
2012	44.4
2013	44.2
2014	41.7
2015	46.8
2016	46.8
2017	46.8
2018	47.1
2019	47.1