Year	% (cumulative)
1971	70.615592956543
2001	99.9617385864258
2002	99.9682159423828
2003	99.8011016845703
2004	90.4469909667969
2005	91.4580688476562
2006	91.5124893188477
2007	91.9819488525391
2008	92.6532363891602
2009	92.2357788085938
2010	93.0478820800781
2011	93.4721221923828
2012	94.6224212646484
2013	91.0849533081055
2014	92.2110290527344
2015	92.9149703979492
2016	93.1592483520508
2017	93.1923522949219
2018	93.4045486450195
2019	94.0198287963867
2020	94.4300689697266
2021	94.5848693847656
2022	95.0192718505859