Year	Number
1996	0.459862679243088
1998	0.53588730096817
2000	0.673051953315735
2002	0.540845692157745
2003	0.668065965175629
2004	0.817942023277283
2005	0.877272307872772
2006	0.828100264072418
2007	0.690660715103149
2008	0.849099040031433
2009	0.861253201961517
2010	0.781369268894196
2011	0.776584029197693
2012	0.781547546386719
2013	0.725885152816772
2014	0.793949067592621
2015	0.737844526767731
2016	0.794448375701904
2017	0.666549742221832
2018	0.581503808498383
2019	0.549811840057373
2020	0.502344250679016
2021	0.491847693920136
2022	0.378621488809586