Year	Total
1984	8213
1985	9115
1986	8735
1987	7280
1988	5129
1989	7134
1990	7597
1991	9781
1992	14020
1993	15820
1994	19970
1995	19930
1996	19820
1997	20610
1998	20130
1999	20070
2000	15810
2001	19710
2002	26630