Year	% (cumulative)
1970	15.1999998092651
1980	26.6000003814697
1990	36.8283996582031
2008	59.7595405578613
2009	59.6301498413086
2011	67.4887466430664
2019	68.9336700439453
2020	70.7357635498047
2021	72.7666168212891
2022	73.2592849731445