Year	Number
1996	69.3467330932617
1998	74
2000	70.1492538452148
2002	67.164176940918
2003	67.6616897583008
2004	68.75
2005	68.8995208740234
2006	68.8995208740234
2007	70.3349304199219
2008	71.6346130371094
2009	74.407585144043
2010	72.9857788085938
2011	73.2394332885742
2012	72.7699508666992
2013	72.7699508666992
2014	76.4423065185547
2015	73.3333358764648
2016	76.1904754638672
2017	75.7142868041992
2018	76.1904754638672
2019	78.0952377319336
2020	76.1904754638672
2021	75.7142868041992
2022	75