Year	% (cumulative)
1970	79.0418014526367
1981	57.2987098693848
1986	58.6725006103516
2004	89.1839904785156
2005	88.5622634887695
2006	88.9581069946289
2007	89.3661880493164
2008	89.6887512207031
2009	89.8415222167969
2010	90.4639434814453
2011	90.7646484375
2012	91.2174682617188
2013	98.6549758911133
2014	91.953742980957
2015	92.1983489990234
2016	92.6971282958984
2017	93.3470687866211
2018	93.3082885742188
2019	94.3740158081055
2020	94.5260620117188
2021	94.9775848388672
2022	95.1544189453125