Year	% (cumulative)
1980	32.2757415771484
1996	63.1827507019043
2000	79.9623870849609
2005	75.8285064697266
2009	87.2056121826172
2010	88.0314865112305
2016	91.8771896362305
2017	95.8723373413086
2018	95.9932098388672
2019	92.5739517211914
2020	96.5279006958008
2021	96.4194107055664
2022	93.5214309692383