Year	Number
1999	9096
2000	9263
2001	9436
2002	9840
2003	9897
2004	10185
2005	10250
2006	10390
2007	10346
2008	10012
2009	9944
2010	9858
2011	9112
2012	8888
2013	9803
2014	9816
2015	9577
2016	9391