Year	% (cumulative)
1998	68.9945068359375
1999	70.0426330566406
2000	70.3826675415039
2001	71.5935287475586
2002	72.5883712768555
2003	73.8189544677734
2004	74.7455291748047
2005	76.3510360717773
2006	79.2586517333984
2007	79.6304016113281
2008	80.0522613525391
2009	81.7112731933594
2010	82.5794677734375
2011	83.2271118164062
2012	83.6713485717773
2013	84.7268981933594
2014	85.2496032714844
2015	85.578239440918
2016	86.3561630249023
2017	86.7609786987305
2018	86.9500198364258
2019	87.3603668212891
2020	87.8963928222656
2021	88.3214263916016
2022	88.1877670288086