Year	% (cumulative)
1972	2.59999990463257
2005	3.77610993385315
2006	14.5875101089478
2007	12.4277315139771
2008	14.4256896972656
2009	14.6208000183105
2010	14.9084196090698
2011	14.2362298965454
2012	18.6863708496094
2013	19.3326797485352
2014	20.9723205566406
2015	18.4534645080566
2016	51.2772331237793
2017	21.4118595123291
2018	7.33107995986938
2019	10.1383695602417
2021	19.7487697601318
