Year	Number
1996	22.8723411560059
1998	45.2127647399902
2000	39.1534385681152
2002	46.0317459106445
2003	36.1809043884277
2004	29.6116504669189
2005	36.4077682495117
2006	45.4106292724609
2007	41.5458946228027
2008	43.75
2009	42.1800956726074
2010	44.5497627258301
2011	41.7061614990234
2012	45.497631072998
2013	38.8625602722168
2014	36.6666679382324
2015	35.238094329834
2016	36.1904754638672
2017	45.7142868041992
2018	52.3584899902344
2019	54.7169799804688
2020	48.113208770752
2021	46.698112487793
2022	41.9811325073242