Year	Number
1996	0.211933627724648
1998	0.20126885175705
2000	0.189398810267448
2002	0.68856954574585
2003	1.22844505310059
2004	1.37110924720764
2005	0.720198452472687
2006	0.434603959321976
2007	0.309399664402008
2008	0.457685977220535
2009	0.706063687801361
2010	0.717142939567566
2011	0.686168372631073
2012	0.64735621213913
2013	0.638162910938263
2014	0.950151205062866
2015	0.891312777996063
2016	0.821662127971649
2017	0.814666867256165
2018	0.971920669078827
2019	0.882088601589203
2020	0.812058627605438
2021	0.780774712562561
2022	0.791746437549591