Year	Number
1996	61.1702117919922
1998	73.9361724853516
2000	69.8412704467773
2002	52.3809509277344
2003	69.8492431640625
2004	68.9320373535156
2005	65.0485458374023
2006	72.4637680053711
2007	74.8792266845703
2008	77.4038467407227
2009	83.8862533569336
2010	79.620849609375
2011	72.9857788085938
2012	83.4123229980469
2013	71.5639801025391
2014	60.9523811340332
2015	60.9523811340332
2016	61.9047622680664
2017	63.8095245361328
2018	61.3207550048828
2019	56.6037750244141
2020	55.1886787414551
2021	59.4339637756348
2022	60.3773574829102