Year	% (cumulative)
1974	0.0993300005793571
1981	0.263049989938736
2001	3.48744010925293
2011	6.18050003051758
2012	6.45325994491577
2013	5.85412979125977
2014	7.40155982971191
2015	9.89999008178711
2016	10.0262403488159
2017	10.6829700469971
2018	11.4245500564575
2019	11.9834499359131
2021	13.5752096176147