Year	Number
1996	25
1998	28.2608699798584
2000	28.2608699798584
2002	37.8378372192383
2003	30.2702693939209
2004	29.3532333374023
2005	24.5098037719727
2006	30.8823528289795
2007	30.5825233459473
2008	35.9223289489746
2009	37.3205757141113
2010	36.3636360168457
2011	33.1753540039063
2012	36.9668235778809
2013	37.4407577514648
2014	40.3846168518066
2015	39.0476188659668
2016	34.2857131958008
2017	32.8571434020996
2018	29.5238094329834
2019	33.3333320617676
2020	37.1428565979004
2021	35.238094329834
2022	36.3207550048828