Year	% (cumulative)
1970	35.3790893554688
1974	42.6517486572266
1979	51.1023788452148
1986	52.8777313232422
1987	54.1735992431641
1988	55.5688705444336
1989	56.8919715881348
1990	58.7847518920898
1991	60.0308303833008
1992	62.7166481018066
1993	64.5060424804688
1994	65.7017288208008
1995	67.0355377197266
2004	78.2497787475586
2005	79.0401763916016
2006	79.7420883178711
2007	80.3960723876953
2008	76.2738800048828
2009	76.9570770263672
2010	77.6163787841797
2011	78.3214797973633
2012	79.0048828125
2013	73.9167327880859
2014	74.4703674316406
2015	75.0337524414062
2016	75.5588836669922
2017	76.1459503173828
2018	83.173713684082
2019	77.2551116943359
2020	84.2090759277344
2021	83.1135482788086
2022	83.9836730957031