Year	Number
1996	59.1397857666016
1998	57.2192497253418
2000	57.4468078613281
2002	56.0846557617188
2003	59.2592582702637
2004	57.1428565979004
2005	54.634147644043
2006	56.5853652954102
2007	54.8543701171875
2008	45.1456298828125
2009	48.3253593444824
2010	52.8571434020996
2011	52.6066360473633
2012	58.7677726745605
2013	61.6113739013672
2014	61.0576934814453
2015	55.238094329834
2016	50
2017	48.0952377319336
2018	58.0952377319336
2019	55.7142868041992
2020	55.7142868041992
2021	50
2022	54.7169799804688