Year	% (cumulative)
1973	5.30000019073486
2000	14.1800003051758
2002	15.5266304016113
2006	19.6499996185303
2012	21.2215404510498
2013	22.6867599487305
2014	22.6100006103516
2015	22.4647998809814
2019	29.4545993804932