Year	Number of
1992	1358
1993	17650
1994	23470
1995	29390
1996	36270
1997	42820
1998	50090
1999	47660
2000	69440
2001	82090
2002	74990
2003	90060
2004	93280
2005	100700
2006	93750
2007	93700