Year	Number
1996	58.152172088623
1998	57.0652160644531
2000	57.6086959838867
2002	42.1621627807617
2003	45.4054069519043
2004	47.2636833190918
2005	48.0392150878906
2006	50.4901962280273
2007	50
2008	46.1165046691895
2009	45.4545440673828
2010	45.9330139160156
2011	46.445499420166
2012	47.8672981262207
2013	50.2369651794434
2014	49.519229888916
2015	47.6190490722656
2016	44.761905670166
2017	39.0476188659668
2018	37.1428565979004
2019	36.6666679382324
2020	37.1428565979004
2021	39.0476188659668
2022	41.5094337463379