Year	% (cumulative)
1975	24.1024398803711
1985	35.3758697509766
1996	40.7360992431641
2003	58.1683387756348
2006	45.5616416931152
2008	44.2999992370605
2009	47.6300010681152
2010	48.7099990844727
2011	51.1300010681152
2012	51.2000007629395
2013	51.8499984741211
2014	52.6100006103516
2015	53.0400009155273
2016	54.0499992370605
2017	55.2099990844727
2018	55.5299987792969
2019	56.4900016784668
2021	59.2999992370605
2022	60.7099990844727