Year	% (cumulative)
1991	44.8275909423828
2005	93.0670318603516
2006	94.0867309570312
2007	93.8722305297852
2008	94.1185913085938
2009	94.1634216308594
2010	93.9822082519531
2011	94.7535705566406
2012	95.7773284912109
2013	96.0809097290039
2014	96.8354415893555
2015	97.4391784667969
2016	96.9931869506836
2017	97.2491073608398
2018	97.1878204345703
2019	97.6130905151367
2020	98.0058975219727
2021	98.3296966552734
2022	98.2980117797852