Year	Number
1996	55.9782600402832
1998	60.3260879516602
2000	51.0869560241699
2002	56.2162170410156
2003	54.0540542602539
2004	60.1990051269531
2005	58.8235282897949
2006	64.7058792114258
2007	66.9902877807617
2008	67.4757308959961
2009	70.3349304199219
2010	73.2057418823242
2011	73.9336471557617
2012	68.7203826904297
2013	71.5639801025391
2014	70.6730804443359
2015	70
2016	69.0476226806641
2017	68.5714263916016
2018	67.1428604125977
2019	66.1904754638672
2020	62.8571434020996
2021	61.9047622680664
2022	63.6792449951172