Year	Number
1996	42.0212783813477
1998	61.1702117919922
2000	43.3862419128418
2002	36.5079383850098
2003	29.6482410430908
2004	32.0388336181641
2005	36.4077682495117
2006	31.4009666442871
2007	31.4009666442871
2008	34.6153831481934
2009	36.0189590454102
2010	38.8625602722168
2011	36.4928894042969
2012	39.3364944458008
2013	54.502368927002
2014	58.0952377319336
2015	54.2857131958008
2016	54.761905670166
2017	57.1428565979004
2018	55.6603775024414
2019	52.8301887512207
2020	50.4716987609863
2021	50.9433975219727
2022	51.886791229248