Year	Number
1996	46.5
1998	55.2238807678223
2000	53.233829498291
2002	45.2736320495605
2003	48.756217956543
2004	48.5576934814453
2005	45.1923065185547
2006	43.269229888916
2007	44.711540222168
2008	35.5769233703613
2009	26.0663509368896
2010	25.5924167633057
2011	24.8826293945313
2012	23.9436626434326
2013	25.8215961456299
2014	31.5270938873291
2015	34.4827575683594
2016	35.4679794311523
2017	34.9753684997559
2018	36.4077682495117
2019	38.164249420166
2020	37.6811599731445
2021	36.7149772644043
2022	38.164249420166