Year	% (cumulative)
1974	4.86180019378662
2001	16.8299999237061
2004	15.9099998474121
2005	16.3299999237061
2006	15.8163080215454
2007	16.1087398529053
2008	16.9878578186035
2009	17.7099990844727
2010	19.0499992370605
2011	20
2012	19.2099990844727
2013	20.4699993133545
2014	23.9899997711182
2015	23.4699993133545
2016	25.0300006866455
2017	23.0415592193604
2018	23.4899997711182
2019	26.1100006103516