Year	% (cumulative)
1971	69
2001	99.9569091796875
2002	99.9785461425781
2003	99.9750289916992
2004	89.0431289672852
2005	90.2619781494141
2006	90.7767028808594
2007	91.4706420898438
2008	92.020881652832
2009	92.2415390014648
2010	93.3515014648438
2011	93.7417373657227
2012	94.2782211303711
2013	91.0779418945312
2014	91.4527816772461
2015	92.3888626098633
2016	92.3775329589844
2017	92.8246765136719
2018	93.4726028442383
2019	93.8737487792969
2020	94.5800628662109
2021	94.5189895629883
2022	95.0251770019531