Year	Number
1996	88.1720428466797
1998	83.4224624633789
2000	82.9787216186523
2002	84.6560821533203
2003	81.4814834594727
2004	81.7733993530273
2005	78.5365829467773
2006	80
2007	77.1844635009766
2008	77.6699066162109
2009	74.1626815795898
2010	73.8095245361328
2011	76.3033142089844
2012	77.7251205444336
2013	78.1990509033203
2014	78.8461532592773
2015	78.5714263916016
2016	83.8095245361328
2017	78.5714263916016
2018	77.6190490722656
2019	78.0952377319336
2020	68.0952377319336
2021	80
2022	78.7735824584961