Year	Number
1996	67.5531921386719
1998	60.638298034668
2000	70.3703689575195
2002	71.4285736083984
2003	65.3266296386719
2004	60.6796112060547
2005	56.7961158752441
2006	65.2173919677734
2007	67.1497573852539
2008	69.2307662963867
2009	72.0379180908203
2010	64.4549789428711
2011	68.7203826904297
2012	70.1421813964844
2013	67.7725143432617
2014	76.6666641235352
2015	79.523811340332
2016	78.5714263916016
2017	70.9523773193359
2018	65.0943374633789
2019	66.9811325073242
2020	67.4528274536133
2021	64.6226425170898
2022	58.0188674926758