Year	% (cumulative)
1970	6.02629995346069
1981	11.5008001327515
1991	20.1437397003174
1998	22.1879405975342
1999	22.9398994445801
2000	24.1616191864014
2001	25.1025390625
2002	25.9804706573486
2003	28.2231006622314
2004	30.9662094116211
2005	32.6132392883301
2006	34.1391716003418
2007	34.989860534668
2008	36.9883995056152
2009	39.1360702514648
2010	41.0765495300293
2011	44.8950119018555
2012	47.1718101501465
2013	48.8208808898926
2014	50.7751693725586
2015	52.0786590576172
2016	53.6321182250977
2017	54.3836097717285
2018	53.8653793334961
2019	57.4131813049316
2020	59.746940612793
2021	63.2117195129395
2022	63.9583015441895