Year	% (cumulative)
1974	7.42596006393433
1982	14.2153301239014
1990	33.9103889465332
2001	31.1900005340576
2003	31.8999996185303
2005	32.6199989318848
2006	32.5800018310547
2007	32.8699989318848
2008	32.9500007629395
2009	33.7999992370605
2010	34.5999984741211
2011	35.3499984741211
2012	37.2000007629395
2013	38.2400016784668
2014	37.8499984741211
2015	41.8699989318848
2016	41.9700012207031
2017	43.0800018310547
2018	41.9199981689453
2019	42.6100006103516
2020	43.9199981689453
2021	45.1699981689453
2022	44.9799995422363