Year	% (cumulative)
1981	80.003776550293
2005	94.790283203125
2006	96.5899429321289
2007	95.6653823852539
2008	95.675048828125
2010	95.6477966308594
2014	96.5431671142578
2015	96.9334030151367
2016	93.9588623046875
2017	97.110237121582
2018	97.4178009033203
2019	97.5393524169922
2020	97.7499771118164
2021	97.9271926879883
2022	98.248046875