| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 3204 | 千吨 | 2026-9 |
| 1997/1998 | 2675 | 千吨 | 2026-9 |
| 1996/1997 | 3200 | 千吨 | 2026-9 |
| 1995/1996 | 3600 | 千吨 | 2026-9 |
| 1994/1995 | 3425 | 千吨 | 2026-9 |
| 1993/1994 | 2300 | 千吨 | 2026-9 |
| 1992/1993 | 2500 | 千吨 | 2026-9 |
| 1991/1992 | 3200 | 千吨 | 2026-9 |
| 1990/1991 | 3900 | 千吨 | 2026-9 |
| 1989/1990 | 3900 | 千吨 | 2026-9 |
| 1988/1989 | 4937 | 千吨 | 2026-9 |
| 1987/1988 | 4375 | 千吨 | 2026-9 |
| 1986/1987 | 4362 | 千吨 | 2026-9 |
| 1985/1986 | 4639 | 千吨 | 2026-9 |
| 1984/1985 | 5376 | 千吨 | 2026-9 |
| 1983/1984 | 4661 | 千吨 | 2026-9 |
| 1982/1983 | 4750 | 千吨 | 2026-9 |
| 1981/1982 | 4689 | 千吨 | 2026-9 |
| 1980/1981 | 4381 | 千吨 | 2026-9 |
| 1979/1980 | 3000 | 千吨 | 2026-9 |
| 1978/1979 | 4400 | 千吨 | 2026-9 |
| 1977/1978 | 3950 | 千吨 | 2026-9 |
| 1976/1977 | 4100 | 千吨 | 2026-9 |
| 1975/1976 | 4030 | 千吨 | 2026-9 |
| 1974/1975 | 5160 | 千吨 | 2026-9 |
| 1973/1974 | 4742 | 千吨 | 2026-9 |
| 1972/1973 | 4807 | 千吨 | 2026-9 |
| 1971/1972 | 4720 | 千吨 | 2026-9 |
| 1970/1971 | 2723 | 千吨 | 2026-9 |
| 1969/1970 | 5230 | 千吨 | 2026-9 |
| 1968/1969 | 4870 | 千吨 | 2026-9 |
| 1967/1968 | 4494 | 千吨 | 2026-9 |
| 1966/1967 | 4605 | 千吨 | 2026-9 |
| 1965/1966 | 4211 | 千吨 | 2026-9 |
| 1964/1965 | 3904 | 千吨 | 2026-9 |
| 1963/1964 | 4176 | 千吨 | 2026-9 |
| 1962/1963 | 3305 | 千吨 | 2026-9 |
| 1961/1962 | 4637 | 千吨 | 2026-9 |
| 1960/1961 | 4104 | 千吨 | 2026-9 |