Year	Number
1996	54.3010749816895
1998	59.8930473327637
2000	57.9787216186523
2002	52.9100532531738
2003	58.7301597595215
2004	55.6650238037109
2005	57.073169708252
2006	51.2195129394531
2007	52.4271850585938
2008	51.4563102722168
2009	54.5454559326172
2010	53.3333320617676
2011	54.502368927002
2012	53.554500579834
2013	54.028434753418
2014	49.038459777832
2015	44.761905670166
2016	47.6190490722656
2017	46.6666679382324
2018	46.1904754638672
2019	47.1428565979004
2020	45.7142868041992
2021	48.0952377319336
2022	48.113208770752