Year	Number
1996	39.1959800720215
1998	38
2000	34.3283576965332
2002	39.3034820556641
2003	46.766170501709
2004	48.0769233703613
2005	49.2822952270508
2006	48.8038291931152
2007	50.2392349243164
2008	52.4038467407227
2009	50.7108993530273
2010	50.7108993530273
2011	50.7042236328125
2012	48.8262901306152
2013	50.2347412109375
2014	45.1923065185547
2015	43.8095245361328
2016	37.6190490722656
2017	39.0476188659668
2018	37.6190490722656
2019	41.9047622680664
2020	44.2857131958008
2021	45.238094329834
2022	44.3396224975586