Year	% (cumulative)
1970	4.69999980926514
1975	6.19999980926514
1980	8.8570499420166
1990	16.3139991760254
2004	29.0575504302979
2005	30.1444492340088
2006	31.0156707763672
2007	31.9044303894043
2008	33.2168083190918
2009	33.9780082702637
2010	35.0120086669922
2011	36.3680801391602
2012	42.4165229797363
2013	43.6326370239258
2014	39.4557914733887
2015	40.1969108581543
2016	41.1928291320801
2017	42.2792510986328
2018	46.6694793701172
2019	44.1038589477539
2020	48.5283317565918
2021	43.8932762145996
2022	47.1495628356934