Year	Number
1996	68.8524627685547
1998	77.5956268310547
2000	81.420768737793
2002	80.5405426025391
2003	81.6216201782227
2004	81.592041015625
2005	81.8627471923828
2006	85.365852355957
2007	85.4368896484375
2008	81.5533981323242
2009	76.5550231933594
2010	81.339714050293
2011	79.620849609375
2012	75.8293838500977
2013	78.6729888916016
2014	84.1346130371094
2015	76.1904754638672
2016	75.7142868041992
2017	74.7619018554688
2018	81.9047622680664
2019	79.0476226806641
2020	81.9047622680664
2021	80
2022	79.2452850341797