Year	% (cumulative)
1971	7.77867984771729
1991	35.7000007629395
2001	56.9496803283691
2010	56.704418182373
2016	66.3040390014648
2017	68.0670318603516
2018	77.8511199951172
2020	79.9035720825195
2022	81.3674392700195