Year	Number
1996	73.3695678710938
1998	71.1956558227539
2000	67.3913040161133
2002	67.0270233154297
2003	66.4864883422852
2004	65.6716384887695
2005	68.6274490356445
2006	66.1764678955078
2007	66.5048522949219
2008	60.1941757202148
2009	60.2870826721191
2010	70.8134002685547
2011	68.7203826904297
2012	67.7725143432617
2013	68.2464447021484
2014	76.4423065185547
2015	72.8571395874023
2016	71.9047622680664
2017	74.2857131958008
2018	71.4285736083984
2019	71.4285736083984
2020	72.8571395874023
2021	72.3809509277344
2022	72.6415100097656