Year	Number
1996	54.8913040161133
1998	52.1739120483398
2000	39.1304359436035
2002	45.4054069519043
2003	37.8378372192383
2004	37.3134346008301
2005	29.4117641448975
2006	40.6862754821777
2007	48.0582542419434
2008	51.4563102722168
2009	51.1961708068848
2010	52.1531105041504
2011	52.6066360473633
2012	54.502368927002
2013	54.9763031005859
2014	55.769229888916
2015	58.0952377319336
2016	60
2017	58.5714302062988
2018	62.8571434020996
2019	60.9523811340332
2020	59.523811340332
2021	57.6190490722656
2022	58.9622650146484