Year	% (cumulative)
1972	14.7700500488281
1982	23.1000003814697
1983	11.1999998092651
2004	28.2069702148438
2006	41.0709381103516
2007	41.7880096435547
2009	42.8012809753418
2010	43.2506294250488
2011	44.0789909362793
2012	44.6699714660645
2013	45.4160499572754
2014	46.790470123291
2015	47.0739784240723
2016	33.9819717407227
2017	34.8950538635254
2018	35.7983818054199
2019	36.2310218811035
2020	36.5067901611328
2021	37.2001266479492
2022	38.054126739502