| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 1460 | 千吨 | 2026-9 |
| 1997/1998 | 1630 | 千吨 | 2026-9 |
| 1996/1997 | 1581 | 千吨 | 2026-9 |
| 1995/1996 | 1495 | 千吨 | 2026-9 |
| 1994/1995 | 1243 | 千吨 | 2026-9 |
| 1993/1994 | 1500 | 千吨 | 2026-9 |
| 1992/1993 | 1229 | 千吨 | 2026-9 |
| 1991/1992 | 1873 | 千吨 | 2026-9 |
| 1990/1991 | 2119 | 千吨 | 2026-9 |
| 1989/1990 | 2186 | 千吨 | 2026-9 |
| 1988/1989 | 2222 | 千吨 | 2026-9 |
| 1987/1988 | 2428 | 千吨 | 2026-9 |
| 1986/1987 | 2486 | 千吨 | 2026-9 |
| 1985/1986 | 2682 | 千吨 | 2026-9 |
| 1984/1985 | 2604 | 千吨 | 2026-9 |
| 1983/1984 | 2377 | 千吨 | 2026-9 |
| 1982/1983 | 2608 | 千吨 | 2026-9 |
| 1981/1982 | 2731 | 千吨 | 2026-9 |
| 1980/1981 | 2245 | 千吨 | 2026-9 |
| 1979/1980 | 2186 | 千吨 | 2026-9 |
| 1978/1979 | 2492 | 千吨 | 2026-9 |
| 1977/1978 | 2552 | 千吨 | 2026-9 |
| 1976/1977 | 2695 | 千吨 | 2026-9 |
| 1975/1976 | 2920 | 千吨 | 2026-9 |
| 1974/1975 | 3244 | 千吨 | 2026-9 |
| 1973/1974 | 3220 | 千吨 | 2026-9 |
| 1972/1973 | 3212 | 千吨 | 2026-9 |
| 1971/1972 | 3195 | 千吨 | 2026-9 |
| 1970/1971 | 3209 | 千吨 | 2026-9 |
| 1969/1970 | 3063 | 千吨 | 2026-9 |
| 1968/1969 | 2831 | 千吨 | 2026-9 |
| 1967/1968 | 2768 | 千吨 | 2026-9 |
| 1966/1967 | 2594 | 千吨 | 2026-9 |
| 1965/1966 | 2476 | 千吨 | 2026-9 |
| 1964/1965 | 2218 | 千吨 | 2026-9 |
| 1963/1964 | 2830 | 千吨 | 2026-9 |
| 1962/1963 | 2740 | 千吨 | 2026-9 |
| 1961/1962 | 2940 | 千吨 | 2026-9 |
| 1960/1961 | 2774 | 千吨 | 2026-9 |