Year	Number
1996	51.6304359436035
1998	43.4782600402832
2000	44.0217399597168
2002	49.1891899108887
2003	55.1351356506348
2004	47.2636833190918
2005	53.9215698242188
2006	54.9019622802734
2007	51.9417457580566
2008	49.5145645141602
2009	46.8899536132813
2010	48.3253593444824
2011	46.445499420166
2012	45.0236968994141
2013	45.0236968994141
2014	37.980770111084
2015	41.9047622680664
2016	39.523811340332
2017	33.3333320617676
2018	25.238094329834
2019	23.8095245361328
2020	30.4761905670166
2021	45.7142868041992
2022	47.6415100097656