Year	Number
1996	44.8087425231934
1998	46.4480857849121
2000	46.4480857849121
2002	34.0540542602539
2003	38.9189186096191
2004	37.8109436035156
2005	35.294116973877
2006	33.1707305908203
2007	31.0679607391357
2008	34.4660186767578
2009	31.5789470672607
2010	31.1004791259766
2011	34.5971565246582
2012	33.1753540039063
2013	36.4928894042969
2014	33.1730766296387
2015	33.8095245361328
2016	37.1428565979004
2017	39.523811340332
2018	36.1904754638672
2019	36.1904754638672
2020	42.8571434020996
2021	33.8095245361328
2022	30.1886787414551