| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2000 | |
| 2 | 1999 | |
| 3 | 1998 | |
| 4 | 1997 | |
| 5 | 1996 | |
| 6 | 1995 | |
| 7 | 1994 | 681700.00 |
| 8 | 1993 | -120700.00 |
| 9 | 1992 | -340600.00 |
| 10 | 1991 | -652900.00 |
| 11 | 1990 | 97500.00 |
| 12 | 1989 | -36700.00 |
| 13 | 1988 | 10100.00 |
| 14 | 1987 | -8900.00 |
| 15 | 1986 | -341400.00 |
| 16 | 1985 | 216900.00 |
| 17 | 1984 | 235800.00 |
| 18 | 1983 | 348000.00 |
| 19 | 1982 | 790000.00 |
| 20 | 1981 | -130700.00 |
| 21 | 1980 | 145000.00 |
| 22 | 1979 | 1565000.00 |
| 23 | 1978 | 587200.00 |
| 24 | 1977 | 735800.00 |
| 25 | 1976 | 1085900.00 |
