Year	% of profit
2005	60.4
2006	60.5
2007	60.7
2008	58.8
2009	55.8
2010	55.3
2011	37.6
2012	37.6
2013	56.9
2014	57.9
2015	49.8
2016	48.7
2017	46.9
2018	47
2019	47