Year	Number
1996	62.2950820922852
1998	59.0163917541504
2000	59.0163917541504
2002	58.9189186096191
2003	56.2162170410156
2004	54.2288551330566
2005	52.9411773681641
2006	48.7804870605469
2007	46.6019401550293
2008	45.1456298828125
2009	48.3253593444824
2010	42.5837326049805
2011	45.971565246582
2012	48.3412322998047
2013	46.445499420166
2014	25
2015	26.1904754638672
2016	27.619047164917
2017	26.1904754638672
2018	20
2019	26.1904754638672
2020	28.0952377319336
2021	27.1428565979004
2022	27.8301887512207