Year	Total
1984	3979
1985	31290
1986	33660
1987	36520
1988	42040
1989	47320
1990	53510
1991	51410
1992	55880
1993	58820
1994	66090
1995	63740
1996	66840
1997	90630
1998	115100
1999	123500
2000	144300
2001	158900
2002	166000