Year	Number
1996	10.5527639389038
1998	10.5
2000	17.412935256958
2002	10.945273399353
2003	7.46268653869629
2004	5.76923084259033
2005	7.17703342437744
2006	10.0478467941284
2007	10.5263156890869
2008	12.9807691574097
2009	12.3222751617432
2010	10.9004735946655
2011	12.6760559082031
2012	9.38967132568359
2013	9.85915470123291
2014	11.057692527771
2015	12.380952835083
2016	17.619047164917
2017	15.2380952835083
2018	19.0476188659668
2019	21.9047622680664
2020	18.5714282989502
2021	22.380952835083
2022	23.5849056243896