Year	% (cumulative)
1971	69.8000030517578
2001	99.9592590332031
2002	99.9734954833984
2003	99.8899383544922
2004	89.7376022338867
2005	90.8543014526367
2006	91.1406707763672
2007	91.7246398925781
2008	92.3343505859375
2009	92.2386703491211
2010	93.1995315551758
2011	93.6081008911133
2012	94.4489364624023
2013	91.081413269043
2014	91.8276672363281
2015	92.6488571166992
2016	92.7639923095703
2017	93.0057067871094
2018	93.4390716552734
2019	93.9455032348633
2020	94.5065307617188
2021	94.5512771606445
2022	95.0222778320312