Year	% (cumulative)
1989	58.2983512878418
2004	96.7142715454102
2005	98.0048599243164
2006	98.9149780273438
2007	97.402099609375
2008	98.0228500366211
2009	98.6255569458008
2010	98.6373596191406
2011	98.8622207641602
2012	98.9122924804688
2013	98.979736328125
2014	99.5377731323242
2015	99.4447708129883
2016	99.3944778442383
2017	97.9381713867188
2018	98.0975723266602
2019	98.1290130615234
2020	98.00244140625
2021	96.9889755249023
2022	97.2051773071289