Year	Number
1996	65.0537643432617
1998	68.9839553833008
2000	68.0851058959961
2002	60.3174591064453
2003	60.3174591064453
2004	52.709358215332
2005	57.073169708252
2006	57.5609741210938
2007	58.2524261474609
2008	63.1067962646484
2009	64.5932998657227
2010	66.1904754638672
2011	68.2464447021484
2012	69.6682434082031
2013	68.2464447021484
2014	68.2692337036133
2015	66.1904754638672
2016	67.1428604125977
2017	67.1428604125977
2018	65.7142868041992
2019	65.2380981445313
2020	63.8095245361328
2021	62.8571434020996
2022	62.2641525268555