Year	Number
1996	30.6010932922363
1998	30.0546455383301
2000	38.7978134155273
2002	28.1081085205078
2003	50.2702713012695
2004	36.8159217834473
2005	41.1764717102051
2006	46.8292694091797
2007	55.8252410888672
2008	63.5922317504883
2009	63.1578941345215
2010	65.0717697143555
2011	69.6682434082031
2012	70.1421813964844
2013	70.1421813964844
2014	68.75
2015	64.2857131958008
2016	67.6190490722656
2017	68.5714263916016
2018	71.4285736083984
2019	75.7142868041992
2020	74.7619018554688
2021	70.9523773193359
2022	72.6415100097656