Year	% (cumulative)
1972	14.8291501998901
1982	21.5718307495117
1992	29.544750213623
2001	30.1499996185303
2002	27.9099998474121
2003	33.439998626709
2004	32.25
2005	37.6300010681152
2006	36.1300010681152
2007	38.6100006103516
2008	41.3300018310547
2009	41.1500015258789
2010	41.0499992370605
2011	44.7999992370605
2012	43.5999984741211
2013	47.0900001525879
2014	47.9199981689453
2015	50.1199989318848
2016	48.2799987792969
2017	49.7400016784668
2018	50.9500007629395
2019	54.2099990844727
2020	53.9000015258789
2021	53.3499984741211
2022	56.939998626709