Year	Total
1984	5183
1985	7017
1986	7521
1987	8374
1988	9543
1989	10850
1990	12610
1991	12100
1992	14930
1993	15650
1994	19580
1995	22720
1996	64820
1997	109400
1998	146900
1999	159000
2000	198300
2001	230400
2002	251600