Year	Number
1996	0.776639640331268
1998	0.566400229930878
2000	0.551933765411377
2002	0.507285356521606
2003	0.410245925188065
2004	0.511063277721405
2005	0.377598911523819
2006	0.373671859502792
2007	0.383997529745102
2008	0.357916176319122
2009	0.457579731941223
2010	0.432563066482544
2011	0.495083898305893
2012	0.523878991603851
2013	0.563814997673035
2014	0.544873297214508
2015	0.510042667388916
2016	0.273077875375748
2017	0.136370822787285
2018	0.119554743170738
2019	0.245266824960709
2020	0.390768140554428
2021	0.683325052261353
2022	0.640424907207489