| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2022 | |
| 2 | 2021 | |
| 3 | 2020 | |
| 4 | 2019 | |
| 5 | 2018 | |
| 6 | 2017 | |
| 7 | 2016 | 0.12 |
| 8 | 2015 | 0.14 |
| 9 | 1993 | 10.06 |
| 10 | 1992 | 44.69 |
| 11 | 1991 | 373.29 |
| 12 | 1990 | 1360.95 |
| 13 | 1989 | 216.86 |
| 14 | 1988 | 0.23 |
| 15 | 1986 | -0.35 |
| 16 | 1985 | -2.20 |
