Year	Number
1996	22.8723411560059
1998	18.0851058959961
2000	26.4550266265869
2002	14.2857141494751
2003	11.0552759170532
2004	3.88349509239197
2005	4.85436916351318
2006	10.6280193328857
2007	10.6280193328857
2008	10.5769233703613
2009	18.0094795227051
2010	18.0094795227051
2011	17.5355453491211
2012	21.3270149230957
2013	25.1184825897217
2014	24.2857151031494
2015	22.380952835083
2016	20.9523811340332
2017	22.380952835083
2018	24.056604385376
2019	16.9811325073242
2020	14.1509437561035
2021	12.2641506195068
2022	10.3773584365845