Year	Number
1996	33.3333320617676
1998	18.5792350769043
2000	31.1475410461426
2002	38.9189186096191
2003	32.972972869873
2004	39.8009948730469
2005	34.3137245178223
2006	37.073169708252
2007	27.1844654083252
2008	27.1844654083252
2009	27.7511959075928
2010	39.7129173278809
2011	35.5450248718262
2012	38.3886260986328
2013	46.9194297790527
2014	49.519229888916
2015	46.1904754638672
2016	37.1428565979004
2017	36.1904754638672
2018	33.3333320617676
2019	33.3333320617676
2020	28.0952377319336
2021	32.8571434020996
2022	35.8490562438965