Year	Number
1996	0.767495036125183
1998	0.798767924308777
2000	0.633313119411469
2002	0.670436203479767
2003	0.510291218757629
2004	0.41630694270134
2005	0.470091372728348
2006	0.382761627435684
2007	0.409072279930115
2008	0.550622165203094
2009	0.645846784114838
2010	0.712359011173248
2011	0.794908702373505
2012	0.817868530750275
2013	0.839548349380493
2014	0.871664524078369
2015	0.803561627864838
2016	0.593977212905884
2017	0.399381786584854
2018	0.376462787389755
2019	0.390535205602646
2020	0.520833730697632
2021	0.427254050970078
2022	0.430609285831451