Year	Number
1996	61.3065338134766
1998	62
2000	62.1890563964844
2002	53.233829498291
2003	56.2189064025879
2004	55.769229888916
2005	56.9377975463867
2006	57.4162673950195
2007	56.4593315124512
2008	57.211540222168
2009	54.9763031005859
2010	53.554500579834
2011	52.582160949707
2012	53.051643371582
2013	53.521125793457
2014	55.769229888916
2015	55.238094329834
2016	52.3809509277344
2017	52.8571434020996
2018	53.3333320617676
2019	51.4285697937012
2020	52.3809509277344
2021	50
2022	55.1886787414551