Year	Number
1996	77.3869323730469
1998	66.5
2000	63.1840782165527
2002	68.6567153930664
2003	70.1492538452148
2004	69.711540222168
2005	69.8564605712891
2006	68.8995208740234
2007	69.3779907226563
2008	63.9423065185547
2009	67.2985763549805
2010	67.7725143432617
2011	68.0751190185547
2012	69.0140838623047
2013	67.1361465454102
2014	76.4423065185547
2015	71.9047622680664
2016	73.8095245361328
2017	73.8095245361328
2018	76.1904754638672
2019	75.7142868041992
2020	76.1904754638672
2021	76.1904754638672
2022	78.301887512207