| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 43 | 千吨 | 2026-9 |
| 1997/1998 | 27 | 千吨 | 2026-9 |
| 1996/1997 | 42 | 千吨 | 2026-9 |
| 1995/1996 | 34 | 千吨 | 2026-9 |
| 1994/1995 | 31 | 千吨 | 2026-9 |
| 1993/1994 | 19 | 千吨 | 2026-9 |
| 1992/1993 | 9 | 千吨 | 2026-9 |
| 1991/1992 | 0 | 千吨 | 2026-9 |
| 1990/1991 | 4 | 千吨 | 2026-9 |
| 1989/1990 | 33 | 千吨 | 2026-9 |
| 1988/1989 | 85 | 千吨 | 2026-9 |
| 1987/1988 | 25 | 千吨 | 2026-9 |
| 1986/1987 | 0 | 千吨 | 2026-9 |
| 1985/1986 | 5 | 千吨 | 2026-9 |
| 1984/1985 | 0 | 千吨 | 2026-9 |
| 1983/1984 | 108 | 千吨 | 2026-9 |
| 1982/1983 | 93 | 千吨 | 2026-9 |
| 1981/1982 | 702 | 千吨 | 2026-9 |
| 1980/1981 | 296 | 千吨 | 2026-9 |
| 1979/1980 | 243 | 千吨 | 2026-9 |
| 1978/1979 | 183 | 千吨 | 2026-9 |
| 1977/1978 | 86 | 千吨 | 2026-9 |
| 1976/1977 | 981 | 千吨 | 2026-9 |
| 1975/1976 | 162 | 千吨 | 2026-9 |
| 1974/1975 | 58 | 千吨 | 2026-9 |
| 1973/1974 | 497 | 千吨 | 2026-9 |
| 1972/1973 | 208 | 千吨 | 2026-9 |
| 1971/1972 | 157 | 千吨 | 2026-9 |
| 1970/1971 | 759 | 千吨 | 2026-9 |
| 1969/1970 | 36 | 千吨 | 2026-9 |
| 1968/1969 | 79 | 千吨 | 2026-9 |
| 1967/1968 | 383 | 千吨 | 2026-9 |
| 1966/1967 | 561 | 千吨 | 2026-9 |
| 1965/1966 | 1103 | 千吨 | 2026-9 |
| 1964/1965 | 608 | 千吨 | 2026-9 |
| 1963/1964 | 733 | 千吨 | 2026-9 |
| 1962/1963 | 1084 | 千吨 | 2026-9 |
| 1961/1962 | 1108 | 千吨 | 2026-9 |
| 1960/1961 | 913 | 千吨 | 2026-9 |