Year	Number
1996	68.3417053222656
1998	65.5
2000	62.1890563964844
2002	67.164176940918
2003	68.1592025756836
2004	64.4230804443359
2005	68.8995208740234
2006	67.464111328125
2007	69.3779907226563
2008	69.711540222168
2009	69.6682434082031
2010	68.7203826904297
2011	72.7699508666992
2012	72.7699508666992
2013	72.7699508666992
2014	78.3653869628906
2015	77.6190490722656
2016	74.7619018554688
2017	77.6190490722656
2018	76.1904754638672
2019	77.1428604125977
2020	75.7142868041992
2021	78.0952377319336
2022	78.7735824584961