Year	Number
1996	17.7419357299805
1998	34.7593574523926
2000	32.4468078613281
2002	23.280424118042
2003	45.5026473999023
2004	50.2463035583496
2005	57.073169708252
2006	64.3902435302734
2007	59.2233009338379
2008	61.6504859924316
2009	60.7655487060547
2010	63.3333320617676
2011	67.7725143432617
2012	72.511848449707
2013	73.459716796875
2014	81.7307662963867
2015	79.0476226806641
2016	80
2017	80.9523773193359
2018	80.9523773193359
2019	80
2020	79.523811340332
2021	80.476188659668
2022	79.7169799804688