Year	Number
1996	44.8087425231934
1998	55.1912574768066
2000	48.0874328613281
2002	51.8918914794922
2003	53.5135116577148
2004	49.2537307739258
2005	54.4117660522461
2006	51.2195129394531
2007	55.3398056030273
2008	57.2815551757813
2009	56.9377975463867
2010	57.4162673950195
2011	61.1374397277832
2012	61.1374397277832
2013	61.1374397277832
2014	65.8653869628906
2015	60
2016	54.2857131958008
2017	52.3809509277344
2018	53.8095245361328
2019	54.2857131958008
2020	54.2857131958008
2021	55.7142868041992
2022	56.1320762634277