Year	% (cumulative)
1998	86.6677474975586
1999	87.1622619628906
2000	87.9225006103516
2001	88.1479415893555
2002	88.6226196289062
2003	89.5296783447266
2004	90.2133941650391
2005	90.6064224243164
2006	92.2425918579102
2007	92.4415130615234
2008	92.6974029541016
2009	93.1870269775391
2010	93.794189453125
2011	93.9448928833008
2012	93.7114486694336
2013	93.89013671875
2014	94.3108825683594
2015	94.237922668457
2016	94.3510818481445
2017	94.6302719116211
2018	94.4342956542969
2019	94.1676788330078
2020	94.2762603759766
2021	94.7237243652344
2022	94.3198471069336