Year	Number
1996	74.7311859130859
1998	71.6577529907227
2000	69.6808547973633
2002	76.1904754638672
2003	75.1322784423828
2004	72.4137954711914
2005	78.5365829467773
2006	71.7073135375977
2007	76.6990280151367
2008	73.7864074707031
2009	73.2057418823242
2010	72.3809509277344
2011	72.511848449707
2012	73.9336471557617
2013	76.7772521972656
2014	74.5192337036133
2015	68.0952377319336
2016	71.4285736083984
2017	72.3809509277344
2018	78.5714263916016
2019	80
2020	80.476188659668
2021	80.9523773193359
2022	81.1320724487305