Year	% (cumulative)
1980	17.1672096252441
1990	32.6394882202148
2000	40.1100006103516
2002	41.0200004577637
2004	45.0200004577637
2005	47.6764907836914
2006	47.6300010681152
2007	51.8123016357422
2008	48.4199981689453
2009	54.364559173584
2010	52.1100006103516
2012	54.7599983215332
2013	56.5583801269531
2014	57.0900001525879
2015	59.538761138916
2016	60.0400009155273
2017	61.171070098877
2018	62.2000007629395
2020	64.4899978637695
2022	66.1100006103516