Year	% (cumulative)
1975	1.78662002086639
1980	3.59999990463257
1985	10.8165302276611
2004	7.33287000656128
2005	7.92870998382568
2006	8.54139041900635
2007	8.92607975006104
2008	9.84591007232666
2009	10.7113103866577
2010	11.5272998809814
2011	12.7643203735352
2012	13.3758897781372
2013	14.8832502365112
2014	15.8283195495605
2015	17.3935794830322
2016	18.1570796966553
2017	19.0878391265869
2018	17.3541126251221
2019	20.7643604278564
2020	19.6952571868896
2021	20.4976119995117
2022	20.9415740966797