Year	Number
1996	87.4316940307617
1998	86.8852462768555
2000	86.3387985229492
2002	85.9459457397461
2003	85.9459457397461
2004	86.5671615600586
2005	85.2941207885742
2006	84.3902435302734
2007	83.4951477050781
2008	83.980583190918
2009	79.4258346557617
2010	81.8181838989258
2011	78.6729888916016
2012	78.1990509033203
2013	75.3554534912109
2014	74.038459777832
2015	72.8571395874023
2016	72.8571395874023
2017	71.4285736083984
2018	70
2019	67.6190490722656
2020	67.6190490722656
2021	67.6190490722656
2022	65.0943374633789