Year	Total
1984	11670
1985	13520
1986	14950
1987	13810
1988	15370
1989	15900
1990	15950
1991	16770
1992	18670
1993	21120
1994	22910
1995	20820
1996	18980
1997	19410
1998	18480
1999	17650
2000	13810
2001	14870
2002	24550