Year	% (cumulative)
1970	17.4312896728516
2006	60.1738395690918
2007	61.5588531494141
2008	63.422779083252
2009	64.2847518920898
2010	63.8468017578125
2011	64.7672882080078
2012	64.9801330566406
2013	65.8222579956055
2014	65.8580703735352
2015	67.8251037597656
2016	68.8634872436523
2017	70.7445220947266
2018	72.2295379638672
2019	72.3771362304688
2020	73.3701782226562
2021	75.3138961791992
2022	76.2228088378906