Year	Total
1984	13980
1985	14540
1986	15260
1987	13400
1988	14990
1989	16060
1990	16150
1991	16810
1992	17970
1993	20640
1994	22310
1995	20340
1996	17300
1997	18080
1998	16250
1999	15430
2000	12260
2001	15640
2002	21850