Year	% (cumulative)
1991	78.7165222167969
1998	98.8465881347656
1999	98.9363784790039
2000	99.3923034667969
2001	99.4473342895508
2002	99.5019836425781
2003	99.6232070922852
2004	99.7527236938477
2005	99.7044830322266
2006	99.7975616455078
2007	99.7995071411133
2008	99.7700881958008
2009	99.7951736450195
2010	99.8747711181641
2011	99.7924118041992
2012	99.7529067993164
2013	99.7615203857422
2014	99.8161163330078
2015	99.7890090942383
2016	99.774040222168
2017	99.7695617675781
2018	99.7341384887695
2019	99.7807235717773
2020	99.8084182739258
2021	99.8209838867188
2022	99.3919219970703