| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 350 | 千吨 | 2026-9 |
| 1997/1998 | 330 | 千吨 | 2026-9 |
| 1996/1997 | 290 | 千吨 | 2026-9 |
| 1995/1996 | 404 | 千吨 | 2026-9 |
| 1994/1995 | 475 | 千吨 | 2026-9 |
| 1993/1994 | 550 | 千吨 | 2026-9 |
| 1992/1993 | 488 | 千吨 | 2026-9 |
| 1991/1992 | 258 | 千吨 | 2026-9 |
| 1990/1991 | 234 | 千吨 | 2026-9 |
| 1989/1990 | 165 | 千吨 | 2026-9 |
| 1988/1989 | 163 | 千吨 | 2026-9 |
| 1987/1988 | 130 | 千吨 | 2026-9 |
| 1986/1987 | 150 | 千吨 | 2026-9 |
| 1985/1986 | 102 | 千吨 | 2026-9 |
| 1984/1985 | 119 | 千吨 | 2026-9 |
| 1983/1984 | 100 | 千吨 | 2026-9 |
| 1982/1983 | 111 | 千吨 | 2026-9 |
| 1981/1982 | 90 | 千吨 | 2026-9 |
| 1980/1981 | 57 | 千吨 | 2026-9 |
| 1979/1980 | 70 | 千吨 | 2026-9 |
| 1978/1979 | 87 | 千吨 | 2026-9 |
| 1977/1978 | 81 | 千吨 | 2026-9 |
| 1976/1977 | 85 | 千吨 | 2026-9 |
| 1975/1976 | 82 | 千吨 | 2026-9 |
| 1974/1975 | 141 | 千吨 | 2026-9 |
| 1973/1974 | 102 | 千吨 | 2026-9 |
| 1972/1973 | 111 | 千吨 | 2026-9 |
| 1971/1972 | 161 | 千吨 | 2026-9 |
| 1970/1971 | 176 | 千吨 | 2026-9 |
| 1969/1970 | 137 | 千吨 | 2026-9 |
| 1968/1969 | 114 | 千吨 | 2026-9 |
| 1967/1968 | 163 | 千吨 | 2026-9 |
| 1966/1967 | 169 | 千吨 | 2026-9 |
| 1965/1966 | 123 | 千吨 | 2026-9 |
| 1964/1965 | 79 | 千吨 | 2026-9 |
| 1963/1964 | 124 | 千吨 | 2026-9 |
| 1962/1963 | 167 | 千吨 | 2026-9 |
| 1961/1962 | 275 | 千吨 | 2026-9 |
| 1960/1961 | 284 | 千吨 | 2026-9 |