Year	Number
1992	349481
1994	354557
1995	357863
1996	358184
1997	359308
1999	335475
2000	307673
2001	294346
2002	264303
2003	237714
2004	222653
2005	214241
2006	218159
2007	245988
2008	268414
2009	293426
2010	316181
2011	314551
2012	313014
2013	350503
2014	361719
2015	383685