Year	% (cumulative)
1986	46.5653305053711
1990	64.2317047119141
1991	51.1507682800293
1992	66.4846496582031
1993	68.2612152099609
1994	68.703369140625
1995	69.871223449707
1996	70.6338577270508
1997	72.4576416015625
1998	73.1770248413086
1999	73.9011535644531
2000	75.0411605834961
2001	71.4653015136719
2002	77.001708984375
2003	78.093620300293
2004	78.5952529907227
2005	79.5366516113281
2006	79.706657409668
2007	80.7910842895508
2008	81.31103515625
2009	81.8826217651367
2010	82.5238571166992
2011	82.7580795288086
2012	83.4855422973633
2013	84.2044219970703
2014	84.649528503418
2015	85.32666015625
2016	84.0237121582031
2017	86.0090179443359
2018	86.6985855102539
2019	87.0673599243164
2020	87.7608032226562
2021	85.8831787109375
2022	88.6919403076172
2023	89.0727386474609
