Year	Number
1996	53.1914901733398
1998	52.1276588439941
2000	65.6084671020508
2002	62.962963104248
2003	41.2060317993164
2004	41.7475738525391
2005	53.3980598449707
2006	41.062801361084
2007	35.7487907409668
2008	30.2884616851807
2009	30.3317527770996
2010	33.6492881774902
2011	48.3412322998047
2012	42.6540298461914
2013	46.9194297790527
2014	55.238094329834
2015	55.7142868041992
2016	60
2017	57.1428565979004
2018	56.6037750244141
2019	58.0188674926758
2020	58.9622650146484
2021	61.7924537658691
2022	53.301887512207