Year	% (cumulative)
1970	29
1982	33.0345802307129
2000	66.7300033569336
2003	68.9599990844727
2004	75.3070220947266
2006	69.5400009155273
2007	76.3395767211914
2008	72.4481201171875
2009	73.4599990844727
2010	73.5491485595703
2011	74.0199966430664
2012	75.5632095336914
2013	76.0899963378906
2014	77.5313339233398
2015	78.5100021362305
2016	78.2450332641602
2017	79.6600036621094
2018	80.5999908447266
2019	81.3367691040039
2020	83.0500030517578
2021	85.0017929077148
2022	83.1999969482422