Year	Number
1996	0.703103303909302
1998	0.673875689506531
2000	0.687808454036713
2002	0.708452701568604
2003	0.724850833415985
2004	0.72966194152832
2005	0.738931596279144
2006	0.624208450317383
2007	0.657145261764526
2008	0.610481977462769
2009	0.627860844135284
2010	0.655701696872711
2011	0.620919644832611
2012	0.644012212753296
2013	0.632543802261353
2014	0.832881629467011
2015	0.464544534683228
2016	0.489676296710968
2017	0.469570875167847
2018	0.468107908964157
2019	0.473354935646057
2020	0.500586986541748
2021	0.476212650537491
2022	0.449883759021759