Year	% (cumulative)
1970	1.80806005001068
1975	2.59999990463257
1980	3.97970008850098
1985	5.73833990097046
1990	7.19999980926514
1995	13.4358701705933
2000	17.7777996063232
2003	22.1963920593262
2004	23.1336441040039
2005	25.2060794830322
2006	26.1546688079834
2007	27.7851276397705
2008	29.3118782043457
2009	23.1816596984863
2010	30.1320495605469
2011	32.5689506530762
2012	33.7177658081055
2013	34.7613906860352
2014	35.7705383300781
2015	35.6613388061523
2016	37.356315612793
2017	38.3193778991699
2018	39.4187431335449
2019	40.3400917053223
2020	40.8626670837402
2021	41.4524078369141
2022	42.2894287109375