Year	Number
1996	0.550159752368927
1998	0.423972100019455
2000	0.537889301776886
2002	0.450584828853607
2003	0.46612486243248
2004	0.511067450046539
2005	0.30626255273819
2006	0.286412954330444
2007	0.401494562625885
2008	0.586111426353455
2009	0.549425184726715
2010	0.536823689937592
2011	0.461840659379959
2012	0.518843412399292
2013	0.48690727353096
2014	0.485294878482819
2015	0.352038741111755
2016	0.382862210273743
2017	0.405473083257675
2018	0.436154454946518
2019	0.527046024799347
2020	0.592665195465088
2021	0.383883684873581
2022	0.500481188297272