Year	% (cumulative)
1971	0.452749997377396
1980	0.802699983119965
1990	2.32263994216919
2006	6.94960021972656
2007	4.49847984313965
2008	4.31999015808105
2009	7.50207996368408
2011	7.88074016571045
2012	8.36978340148926
2013	8.73048686981201
2014	8.65480041503906
2015	9.24635982513428
2016	9.39820003509521
2017	11.0368995666504
2018	9.99415016174316
2019	11.4940977096558
2020	11.0280704498291
2021	12.1840791702271
2022	12.1126089096069