Year	Number
1996	44.0860214233398
1998	47.5935821533203
2000	59.5744667053223
2002	73.0158767700195
2003	74.0740737915039
2004	72.4137954711914
2005	72.6829299926758
2006	52.1951217651367
2007	54.3689308166504
2008	54.8543701171875
2009	59.8086128234863
2010	60.9523811340332
2011	57.3459701538086
2012	60.1895751953125
2013	58.7677726745605
2014	57.6923065185547
2015	44.2857131958008
2016	36.1904754638672
2017	44.761905670166
2018	38.5714302062988
2019	34.761905670166
2020	37.1428565979004
2021	49.523811340332
2022	39.6226425170898