| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 19667.00 |
| 8 | 2016 | 21260.00 |
| 9 | 2015 | 37642.00 |
| 10 | 2014 | 251000.00 |
| 11 | 1994 | 93400.00 |
| 12 | 1993 | 37400.00 |
| 13 | 1992 | 33000.00 |
| 14 | 1991 | 50600.00 |
| 15 | 1989 | 0.12 |
| 16 | 1988 | 0.08 |
| 17 | 1987 | 0.01 |
| 18 | 1986 | 0.03 |
| 19 | 1985 | 0.03 |
| 20 | 1984 | 0.04 |
| 21 | 1983 | 0.03 |
| 22 | 1982 | 0.04 |
| 23 | 1981 | 0.02 |
| 24 | 1980 | 0.00 |
| 25 | 1979 | 0.00 |
| 26 | 1978 | 0.00 |
| 27 | 1977 | 0.00 |
| 28 | 1976 | 0.00 |
| 29 | 1975 | 0.00 |
| 30 | 1974 | 0.00 |
| 31 | 1973 | 0.00 |
| 32 | 1972 | 0.00 |
| 33 | 1971 | 0.01 |
| 34 | 1970 | 0.01 |
