Year	Number
1996	49.2462310791016
1998	57.5
2000	63.6815910339355
2002	65.1741256713867
2003	63.1840782165527
2004	60.0961532592773
2005	67.464111328125
2006	67.9425811767578
2007	65.5502395629883
2008	70.1923065185547
2009	78.1990509033203
2010	73.9336471557617
2011	71.3615036010742
2012	78.8732376098633
2013	78.8732376098633
2014	77.4038467407227
2015	74.2857131958008
2016	76.1904754638672
2017	75.2380981445313
2018	74.2857131958008
2019	74.2857131958008
2020	81.4285736083984
2021	80.9523773193359
2022	79.2452850341797