Year	Number
1996	0.837555170059204
1998	0.736908495426178
2000	0.587037920951843
2002	0.776045680046082
2003	0.703846335411072
2004	0.785955905914307
2005	0.709748506546021
2006	0.629231572151184
2007	0.551828980445862
2008	0.577969372272491
2009	0.615196585655212
2010	0.492912799119949
2011	0.451953709125519
2012	0.276448935270309
2013	0.357710689306259
2014	0.298648625612259
2015	0.146552965044975
2016	0.125311464071274
2017	0.239429265260696
2018	0.258635640144348
2019	0.31449168920517
2020	0.403194963932037
2021	0.406721621751785
2022	0.447398781776428