Year	% (cumulative)
1970	13.8000001907349
1980	26.3999996185303
1990	37.0205383300781
2008	59.5083999633789
2009	59.6944808959961
2011	68.0554885864258
2019	69.9184799194336
2020	71.8316192626953
2021	73.6594772338867
2022	73.6583404541016