Year	% (cumulative)
1975	7.59999990463257
1980	10.6999998092651
1984	14.8717002868652
2008	37.0811614990234
2010	39.3346900939941
2011	40.5071601867676
2012	39.8240089416504
2016	44.5907096862793
2018	42.7090911865234
2019	43.2519302368164