Year	% (cumulative)
1972	9.447509765625
1983	19.4442005157471
1990	26
2000	33.5187683105469
2011	49.7973098754883
2012	49.3471488952637
2013	50.7916259765625
2014	52.6249809265137
2015	54.6727600097656
2016	54.4437828063965
2017	55.6055641174316
2018	56.4969673156738
2019	57.6966438293457
2020	71.0327072143555
2021	58.7585487365723
2022	60.3737907409668