Year	Number
1996	0.421002686023712
1998	0.301575392484665
2000	0.370262295007706
2002	0.208880379796028
2003	0.353011250495911
2004	0.369521200656891
2005	0.311570793390274
2006	0.155884757637978
2007	0.10320233553648
2008	0.112552218139172
2009	0.226648017764091
2010	0.37242180109024
2011	0.319815337657928
2012	0.386670023202896
2013	0.419104278087616
2014	0.553784787654877
2015	0.583111226558685
2016	0.676848351955414
2017	0.518894791603088
2018	0.46633306145668
2019	0.666612505912781
2020	0.778642654418945
2021	0.824829578399658
2022	0.747045457363129