Year	% (cumulative)
1980	16.2068290710449
2009	95.2190170288086
2010	95.3200531005859
2011	95.3750915527344
2012	95.5655364990234
2014	96.4554595947266
2015	96.7412796020508
2016	96.4422073364258
2017	96.3849868774414
2018	96.6666488647461
2019	96.8586730957031
2020	96.8767700195312
2021	97.7458801269531
2022	97.873649597168