Year	Number
1996	47.3118286132813
1998	34.2245979309082
2000	36.7021293640137
2002	34.3915328979492
2003	30.1587295532227
2004	26.1083736419678
2005	34.1463432312012
2006	37.5609741210938
2007	36.8932037353516
2008	36.4077682495117
2009	23.4449768066406
2010	18.5714282989502
2011	17.5355453491211
2012	17.0616111755371
2013	16.1137447357178
2014	7.21153831481934
2015	10
2016	5.7142858505249
2017	6.66666650772095
2018	6.66666650772095
2019	4.7619047164917
2020	5.2380952835083
2021	6.1904764175415
2022	6.60377359390259