Year	% (cumulative)
1998	99.2536468505859
1999	99.5988159179688
2000	99.8638458251953
2001	99.8318481445312
2002	99.7954864501953
2003	99.7587203979492
2004	99.8780059814453
2005	99.8898086547852
2006	99.8836822509766
2007	99.8975296020508
2008	99.8857192993164
2009	99.8760070800781
2010	99.8513870239258
2011	99.9034576416016
2012	99.9219284057617
2013	99.8886108398438
2014	99.8529434204102
2015	99.871696472168
2016	99.8718338012695
2017	99.9189071655273
2018	99.9118423461914
2019	99.8790512084961
2020	99.8789443969727
2021	99.8981781005859
2022	99.0271682739258