Year	US Dollars adjusted for inflation)
1980	8692
1981	7740
1982	7948
1983	7803
1984	7920
1985	7129
1986	7005
1987	6774
1988	8022
1989	8174
1990	8558
1991	8698
1992	8628
1993	8603
1994	9028
1995	9786
1996	10570
1997	10610
1998	10610
1999	9497
2000	9357
2001	9611
2002	9558
2003	9550