Year	% (cumulative)
1975	13.0237503051758
1980	17.4770393371582
1985	21.3766994476318
2004	38.0511207580566
2005	40.2220115661621
2006	41.3046798706055
2007	41.8389511108398
2008	43.3472290039062
2009	45.009708404541
2010	57.6179885864258
2011	60.8922004699707
2012	62.26953125
2013	63.7792816162109
2014	65.9251937866211
2015	67.1706619262695
2016	69.4442291259766
2017	71.3700637817383
2018	55.249080657959
2019	75.9415283203125
2020	58.1736946105957
2021	59.7846412658691
2022	61.016773223877