Year	Number
1996	0.187617555260658
1998	0.302315533161163
2000	0.331546425819397
2002	0.295856952667236
2003	0.361106097698212
2004	0.376263976097107
2005	0.296854168176651
2006	0.318718701601028
2007	0.313446849584579
2008	0.306070953607559
2009	0.293650358915329
2010	0.29765710234642
2011	0.265795707702637
2012	0.28447824716568
2013	0.274369567632675
2014	0.339087873697281
2015	0.290956318378448
2016	0.283236235380173
2017	0.293604880571365
2018	0.317892551422119
2019	0.315970718860626
2020	0.339990764856339
2021	0.362440079450607
2022	0.361435800790787