Year	% (cumulative)
1975	2.95699000358582
1980	5.73171997070312
1985	14.9644603729248
2004	9.57400989532471
2005	10.239649772644
2006	10.8875303268433
2007	11.3096799850464
2008	12.1463298797607
2009	13.0833501815796
2010	14.042329788208
2011	15.469220161438
2012	16.0273094177246
2013	17.5647106170654
2014	18.4833602905273
2015	20.1278896331787
2016	20.7892799377441
2017	21.6357803344727
2018	19.6985359191895
2019	23.0715599060059
2020	22.0120315551758
2021	22.6306686401367
2022	22.8418922424316