| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2000 | |
| 8 | 1999 | |
| 9 | 1998 | |
| 10 | 1997 | |
| 11 | 1996 | 17580.00 |
| 12 | 1995 | 17140.00 |
| 13 | 1994 | 15810.00 |
| 14 | 1993 | 15360.00 |
| 15 | 1992 | 15530.00 |
| 16 | 1991 | 14700.00 |
| 17 | 1990 | 14290.00 |
| 18 | 1989 | 14100.00 |
| 19 | 1988 | 12880.00 |
| 20 | 1987 | 7820.00 |
| 21 | 1986 | 5960.00 |
| 22 | 1985 | 5310.00 |
| 23 | 1984 | 5270.00 |
| 24 | 1983 | 5680.00 |
| 25 | 1982 | 6820.00 |
| 26 | 1981 | 7480.00 |
| 27 | 1980 | 7460.00 |
| 28 | 1979 | 6460.00 |
| 29 | 1978 | 6560.00 |
| 30 | 1977 | 6190.00 |
| 31 | 1976 | 6070.00 |
| 32 | 1975 | 6170.00 |
| 33 | 1974 | 5260.00 |
| 34 | 1973 | 4090.00 |
| 35 | 1972 | 3960.00 |
| 36 | 1971 | 3580.00 |
| 37 | 1970 | 3300.00 |
| 38 | 1969 | 2500.00 |
| 39 | 1968 | 2120.00 |
| 40 | 1967 | 1790.00 |
