| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 563.95 |
| 8 | 2016 | 537.09 |
| 9 | 2015 | 43.56 |
| 10 | 2013 | 0.02 |
| 11 | 2012 | 0.07 |
| 12 | 1999 | 118.10 |
| 13 | 1998 | 22.00 |
| 14 | 1997 | 17.00 |
| 15 | 1996 | 219.00 |
| 16 | 1995 | 260.00 |
| 17 | 1994 | 250.00 |
| 18 | 1993 | 250.00 |
| 19 | 1992 | 210.00 |
| 20 | 1991 | 260.00 |
| 21 | 1990 | 120.00 |
| 22 | 1986 | 20.00 |
| 23 | 1985 | 20.00 |
| 24 | 1981 | 20.00 |
| 25 | 1980 | 140.00 |
| 26 | 1979 | 140.00 |
| 27 | 1978 | 100.00 |
| 28 | 1977 | 100.00 |
