Year	% (cumulative)
1991	11.9237003326416
2001	30.3475894927979
2006	26.2318725585938
2007	27.4460391998291
2008	28.0988998413086
2009	34.8700218200684
2010	35.452320098877
2011	37.3140144348145
2012	39.0075912475586
2013	40.5373649597168
2014	43.4823036193848
2015	40.0541076660156
2016	41.5213241577148
2017	38.7612762451172
2018	42.126293182373
2019	44.8832130432129
2020	44.545711517334
2021	47.8413047790527
2022	49.203296661377