Year	Number
1996	53.7234039306641
1998	53.1914901733398
2000	52.9100532531738
2002	39.6825408935547
2003	66.331657409668
2004	53.8834953308105
2005	45.1456298828125
2006	51.6908226013184
2007	46.3768119812012
2008	29.8076915740967
2009	21.8009471893311
2010	17.0616111755371
2011	24.6445503234863
2012	28.9099521636963
2013	24.6445503234863
2014	26.6666660308838
2015	30.4761905670166
2016	35.238094329834
2017	33.8095245361328
2018	25.943395614624
2019	33.9622650146484
2020	26.4150943756104
2021	26.8867931365967
2022	25.943395614624