Year	Number
1996	43.0851058959961
1998	35.638298034668
2000	37.037036895752
2002	34.9206352233887
2003	22.6130657196045
2004	23.7864074707031
2005	19.4174766540527
2006	22.7053146362305
2007	19.3236713409424
2008	23.5576915740967
2009	28.4360198974609
2010	32.2274894714355
2011	33.1753540039063
2012	33.1753540039063
2013	36.4928894042969
2014	33.3333320617676
2015	36.6666679382324
2016	36.6666679382324
2017	34.761905670166
2018	36.7924537658691
2019	20.2830181121826
2020	29.2452831268311
2021	36.7924537658691
2022	36.3207550048828