Year	% (cumulative)
1980	4.77913999557495
1990	6.00579023361206
1995	9.45765972137451
2005	32.7051582336426
2006	34.1750411987305
2007	35.007209777832
2008	37.4087295532227
2009	38.6622581481934
2010	40.1842308044434
2011	41.4113082885742
2012	42.9751396179199
2013	44.5157814025879
2014	45.755729675293
2015	46.0644302368164
2016	47.0068206787109
2017	48.562629699707
2018	49.9709510803223
2019	50.9819412231445
2020	50.6369094848633
2021	52.3953399658203
2022	53.1215591430664