Year	Number
1996	52.2613067626953
1998	51.5
2000	47.7611923217773
2002	47.2636833190918
2003	57.7114410400391
2004	42.3076934814453
2005	39.2344512939453
2006	44.4976081848145
2007	45.9330139160156
2008	39.9038467407227
2009	36.4928894042969
2010	34.1232223510742
2011	33.8028182983398
2012	32.8638496398926
2013	33.3333320617676
2014	28.8461532592773
2015	27.1428565979004
2016	22.8571434020996
2017	34.2857131958008
2018	35.238094329834
2019	39.523811340332
2020	39.0476188659668
2021	38.5714302062988
2022	37.2641525268555