| 年度 | 数值 | 单位 | 发布日期 |
| 1998/1999 | 5326 | 千吨 | 2026-9 |
| 1997/1998 | 5303 | 千吨 | 2026-9 |
| 1996/1997 | 5282 | 千吨 | 2026-9 |
| 1995/1996 | 5233 | 千吨 | 2026-9 |
| 1994/1995 | 5238 | 千吨 | 2026-9 |
| 1993/1994 | 5081 | 千吨 | 2026-9 |
| 1992/1993 | 4994 | 千吨 | 2026-9 |
| 1991/1992 | 5304 | 千吨 | 2026-9 |
| 1990/1991 | 5405 | 千吨 | 2026-9 |
| 1989/1990 | 5167 | 千吨 | 2026-9 |
| 1988/1989 | 5141 | 千吨 | 2026-9 |
| 1987/1988 | 5077 | 千吨 | 2026-9 |
| 1986/1987 | 4977 | 千吨 | 2026-9 |
| 1985/1986 | 5016 | 千吨 | 2026-9 |
| 1984/1985 | 4872 | 千吨 | 2026-9 |
| 1983/1984 | 4864 | 千吨 | 2026-9 |
| 1982/1983 | 5130 | 千吨 | 2026-9 |
| 1981/1982 | 5057 | 千吨 | 2026-9 |
| 1980/1981 | 5315 | 千吨 | 2026-9 |
| 1979/1980 | 4505 | 千吨 | 2026-9 |
| 1978/1979 | 4600 | 千吨 | 2026-9 |
| 1977/1978 | 4590 | 千吨 | 2026-9 |
| 1976/1977 | 5200 | 千吨 | 2026-9 |
| 1975/1976 | 4755 | 千吨 | 2026-9 |
| 1974/1975 | 4451 | 千吨 | 2026-9 |
| 1973/1974 | 4596 | 千吨 | 2026-9 |
| 1972/1973 | 4219 | 千吨 | 2026-9 |
| 1971/1972 | 4771 | 千吨 | 2026-9 |
| 1970/1971 | 4645 | 千吨 | 2026-9 |
| 1969/1970 | 3952 | 千吨 | 2026-9 |
| 1968/1969 | 3876 | 千吨 | 2026-9 |
| 1967/1968 | 3830 | 千吨 | 2026-9 |
| 1966/1967 | 3728 | 千吨 | 2026-9 |
| 1965/1966 | 3933 | 千吨 | 2026-9 |
| 1964/1965 | 3861 | 千吨 | 2026-9 |
| 1963/1964 | 3608 | 千吨 | 2026-9 |
| 1962/1963 | 3225 | 千吨 | 2026-9 |
| 1961/1962 | 3166 | 千吨 | 2026-9 |
| 1960/1961 | 3154 | 千吨 | 2026-9 |