Year	Number
1996	21
1998	20.3980102539063
2000	58.7064666748047
2002	67.6616897583008
2003	64.1791076660156
2004	56.25
2005	54.3269233703613
2006	55.769229888916
2007	57.6923065185547
2008	58.6538467407227
2009	56.8720397949219
2010	55.4502372741699
2011	58.2159614562988
2012	57.7464790344238
2013	57.2769966125488
2014	60.0985221862793
2015	61.5763549804688
2016	63.0541877746582
2017	68.4729080200195
2018	67.4757308959961
2019	65.2173919677734
2020	65.7004852294922
2021	67.6328506469727
2022	69.5652160644531