Year	% (cumulative)
1972	50.1691513061523
1982	63.9338417053223
1983	50.1139602661133
2004	94.6835403442383
2006	75.4545516967773
2007	85.8261184692383
2009	86.2444229125977
2010	86.8179931640625
2011	87.2354965209961
2012	87.5751571655273
2013	89.8746185302734
2014	90.3766021728516
2015	90.5718765258789
2016	91.8925628662109
2017	91.9135971069336
2018	91.6063690185547
2019	91.9353485107422
2020	92.77587890625
2021	92.6890487670898
2022	92.7145004272461