| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 1998/1999 | 2 | 千吨 | 2026-9 |
| 1997/1998 | 9 | 千吨 | 2026-9 |
| 1996/1997 | 52 | 千吨 | 2026-9 |
| 1995/1996 | 72 | 千吨 | 2026-9 |
| 1994/1995 | 3 | 千吨 | 2026-9 |
| 1993/1994 | 48 | 千吨 | 2026-9 |
| 1992/1993 | 148 | 千吨 | 2026-9 |
| 1991/1992 | 0 | 千吨 | 2026-9 |
| 1990/1991 | 299 | 千吨 | 2026-9 |
| 1989/1990 | 23 | 千吨 | 2026-9 |
| 1988/1989 | 1160 | 千吨 | 2026-9 |
| 1987/1988 | 652 | 千吨 | 2026-9 |
| 1986/1987 | 268 | 千吨 | 2026-9 |
| 1985/1986 | 600 | 千吨 | 2026-9 |
| 1984/1985 | 400 | 千吨 | 2026-9 |
| 1983/1984 | 250 | 千吨 | 2026-9 |
| 1982/1983 | 300 | 千吨 | 2026-9 |
| 1981/1982 | 900 | 千吨 | 2026-9 |
| 1980/1981 | 900 | 千吨 | 2026-9 |
| 1979/1980 | 653 | 千吨 | 2026-9 |
| 1978/1979 | 225 | 千吨 | 2026-9 |
| 1977/1978 | 519 | 千吨 | 2026-9 |
| 1976/1977 | 63 | 千吨 | 2026-9 |
| 1975/1976 | 376 | 千吨 | 2026-9 |
| 1974/1975 | 222 | 千吨 | 2026-9 |
| 1973/1974 | 359 | 千吨 | 2026-9 |
| 1972/1973 | 68 | 千吨 | 2026-9 |
| 1971/1972 | 0 | 千吨 | 2026-9 |
| 1970/1971 | 33 | 千吨 | 2026-9 |
| 1969/1970 | 0 | 千吨 | 2026-9 |
| 1968/1969 | 83 | 千吨 | 2026-9 |
| 1967/1968 | 39 | 千吨 | 2026-9 |
| 1966/1967 | 26 | 千吨 | 2026-9 |
| 1965/1966 | 76 | 千吨 | 2026-9 |
| 1964/1965 | 29 | 千吨 | 2026-9 |
| 1963/1964 | 108 | 千吨 | 2026-9 |
| 1962/1963 | 105 | 千吨 | 2026-9 |
| 1961/1962 | 37 | 千吨 | 2026-9 |
| 1960/1961 | 61 | 千吨 | 2026-9 |