Year	Number
1996	0.644922494888306
1998	0.65214592218399
2000	0.618822574615479
2002	0.568053841590881
2003	0.576729536056519
2004	0.496140122413635
2005	0.45541724562645
2006	0.471941262483597
2007	0.607417523860931
2008	0.723360240459442
2009	0.655355095863342
2010	0.623638272285461
2011	0.65059757232666
2012	0.667813062667847
2013	0.550113499164581
2014	0.511338114738464
2015	0.554864108562469
2016	0.521492779254913
2017	0.496014624834061
2018	0.633342146873474
2019	0.62259715795517
2020	0.679121077060699
2021	0.89958781003952
2022	0.662167310714722