Year	US Dollars adjusted for inflation)
1987	9733
1988	9910
1989	10090
1990	9903
1991	8187
1992	7766
1993	7499
1994	7873
1995	8208
1996	8600
1997	8891
1998	9294
1999	9544
2000	9697
2001	9996
2002	10480
2003	10940
2004	11330