Year	% (cumulative)
1974	8.51974964141846
1982	15.436240196228
1990	35.9104804992676
2001	31.7199993133545
2003	31.8700008392334
2005	33.0099983215332
2006	33.1100006103516
2007	33.25
2008	33.2099990844727
2009	34.0400009155273
2010	34.9099998474121
2011	35.9000015258789
2012	37.8600006103516
2013	38.6399993896484
2014	38.5200004577637
2015	42.2299995422363
2016	42.2599983215332
2017	43.4599990844727
2018	42.2799987792969
2019	42.8899993896484
2020	43.3499984741211
2021	45.4300003051758
2022	45.3800010681152