Year	% of profit
2005	51.7
2006	51.7
2007	52.9
2008	52.9
2009	49.4
2010	49.7
2011	49.7
2012	49.7
2013	48.8
2014	49
2015	49.1
2016	49.3
2017	49.8
2018	49.8
2019	45.8