Year	% (cumulative)
1980	3.36265993118286
2006	22.7525405883789
2007	21.6880493164062
2008	22.3894805908203
2009	23.8369998931885
2011	25.1608104705811
2012	25.6083354949951
2013	26.5851745605469
2014	27.3740692138672
2015	28.5251903533936
2016	29.7811298370361
2017	30.07253074646
2018	30.9906997680664
2019	33.4154281616211
2020	34.6297912597656
2021	36.295581817627
2022	36.7618980407715