Year	% (cumulative)
1981	7.59999990463257
1991	8.69999980926514
2005	23.2665996551514
2006	23.9963703155518
2007	25.3001708984375
2008	25.6896095275879
2010	26.841739654541
2014	29.7684898376465
2015	30.480489730835
2016	26.6989898681641
2017	32.590145111084
2018	33.4399070739746
2019	33.5626678466797
2020	34.8261108398438
2021	36.3093872070312
2022	36.5751152038574