Year	Number
1996	83.606559753418
1998	81.9672164916992
2000	80.3278656005859
2002	73.5135116577148
2003	81.6216201782227
2004	80.5970153808594
2005	78.9215698242188
2006	82.4390258789063
2007	83.4951477050781
2008	84.4660186767578
2009	84.2105255126953
2010	86.6028671264648
2011	86.2559204101563
2012	88.6255950927734
2013	85.3080596923828
2014	90.3846130371094
2015	89.523811340332
2016	88.0952377319336
2017	86.6666641235352
2018	86.6666641235352
2019	85.2380981445313
2020	85.7142868041992
2021	84.2857131958008
2022	82.5471725463867