Year	Total
1984	40330
1985	47910
1986	40590
1987	32130
1988	32520
1989	26400
1990	23220
1991	18160
1992	18730
1993	24780
1994	17910
1995	28840
1996	32030
1997	34800
1998	36820
1999	38960
2000	20410
2001	23300
2002	31890