Year	Number
1996	40.2010040283203
1998	43
2000	36.8159217834473
2002	42.2885589599609
2003	38.8059692382813
2004	40.3846168518066
2005	39.7129173278809
2006	43.5406684875488
2007	44.4976081848145
2008	46.1538467407227
2009	42.6540298461914
2010	40.7582931518555
2011	43.6619720458984
2012	44.6009407043457
2013	45.5399055480957
2014	47.1153831481934
2015	49.523811340332
2016	48.5714302062988
2017	50
2018	47.1428565979004
2019	43.8095245361328
2020	45.7142868041992
2021	46.1904754638672
2022	51.886791229248