Year	% (cumulative)
1970	9.56816005706787
1975	11.829930305481
1980	15.215220451355
1990	18.7939701080322
2000	15.523850440979
2004	27.2664909362793
2008	29.7361507415771
2010	31.2143096923828
2013	32.8508415222168
2017	20.0713500976562
2019	30.3761901855469
2020	35.2957496643066
2021	26.5233345031738
2022	26.0695648193359