Year	% (cumulative)
1970	37.3493194580078
1985	34.9209213256836
2001	64.5380783081055
2002	70.5933609008789
2003	73.3322982788086
2004	73.1749420166016
2005	74.7911376953125
2006	75.42041015625
2007	76.1841506958008
2008	77.111328125
2009	80.3624420166016
2010	80.6322708129883
2011	80.4280090332031
2012	82.8865814208984
2013	82.7603759765625
2014	83.0849609375
2015	84.0395126342773
2016	80.5287322998047
2017	86.9765090942383
2018	85.8580551147461
2019	91.5253601074219
2020	89.3410720825195
2021	89.044548034668
2022	88.5138854980469