Year	% (cumulative)
1970	14.0161895751953
2006	57.7329292297363
2007	58.8440856933594
2008	60.4241600036621
2009	61.6929016113281
2010	61.7283782958984
2011	62.7599296569824
2012	63.2111015319824
2013	64.2786865234375
2014	64.0188827514648
2015	66.210578918457
2016	67.0826416015625
2017	69.1504516601562
2018	70.8456954956055
2019	71.4462585449219
2020	72.7141799926758
2021	74.2476806640625
2022	75.1261901855469