Year	% (cumulative)
1980	2.77798008918762
1996	8.13685989379883
2000	12.8726100921631
2005	5.37081003189087
2009	16.3131999969482
2010	17.0312995910645
2016	20.0953998565674
2017	22.4264259338379
2018	23.0385494232178
2019	21.7049102783203
2020	25.3269004821777
2021	28.8884868621826
2022	26.2140598297119