Year	Number
1996	80.1075286865234
1998	72.192512512207
2000	72.8723373413086
2002	70.8994674682617
2003	73.5449752807617
2004	72.4137954711914
2005	70.2439041137695
2006	70.2439041137695
2007	66.9902877807617
2008	65.5339813232422
2009	70.3349304199219
2010	71.9047622680664
2011	71.0900497436523
2012	72.511848449707
2013	72.9857788085938
2014	75.4807662963867
2015	76.6666641235352
2016	79.523811340332
2017	75.7142868041992
2018	75.2380981445313
2019	80
2020	81.4285736083984
2021	82.8571395874023
2022	81.1320724487305