| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 3126 | 千吨 | 2026-9 |
| 1997/1998 | 3148 | 千吨 | 2026-9 |
| 1996/1997 | 3095 | 千吨 | 2026-9 |
| 1995/1996 | 2931 | 千吨 | 2026-9 |
| 1994/1995 | 3241 | 千吨 | 2026-9 |
| 1993/1994 | 3225 | 千吨 | 2026-9 |
| 1992/1993 | 3706 | 千吨 | 2026-9 |
| 1991/1992 | 3949 | 千吨 | 2026-9 |
| 1990/1991 | 4690 | 千吨 | 2026-9 |
| 1989/1990 | 4900 | 千吨 | 2026-9 |
| 1988/1989 | 4719 | 千吨 | 2026-9 |
| 1987/1988 | 4698 | 千吨 | 2026-9 |
| 1986/1987 | 4726 | 千吨 | 2026-9 |
| 1985/1986 | 4678 | 千吨 | 2026-9 |
| 1984/1985 | 5067 | 千吨 | 2026-9 |
| 1983/1984 | 4568 | 千吨 | 2026-9 |
| 1982/1983 | 4604 | 千吨 | 2026-9 |
| 1981/1982 | 3416 | 千吨 | 2026-9 |
| 1980/1981 | 5377 | 千吨 | 2026-9 |
| 1979/1980 | 2854 | 千吨 | 2026-9 |
| 1978/1979 | 5134 | 千吨 | 2026-9 |
| 1977/1978 | 4755 | 千吨 | 2026-9 |
| 1976/1977 | 4357 | 千吨 | 2026-9 |
| 1975/1976 | 3331 | 千吨 | 2026-9 |
| 1974/1975 | 4076 | 千吨 | 2026-9 |
| 1973/1974 | 3566 | 千吨 | 2026-9 |
| 1972/1973 | 3164 | 千吨 | 2026-9 |
| 1971/1972 | 3582 | 千吨 | 2026-9 |
| 1970/1971 | 3028 | 千吨 | 2026-9 |
| 1969/1970 | 3177 | 千吨 | 2026-9 |
| 1968/1969 | 3274 | 千吨 | 2026-9 |
| 1967/1968 | 3217 | 千吨 | 2026-9 |
| 1966/1967 | 2397 | 千吨 | 2026-9 |
| 1965/1966 | 2509 | 千吨 | 2026-9 |
| 1964/1965 | 2171 | 千吨 | 2026-9 |
| 1963/1964 | 1813 | 千吨 | 2026-9 |
| 1962/1963 | 2280 | 千吨 | 2026-9 |
| 1961/1962 | 2077 | 千吨 | 2026-9 |
| 1960/1961 | 2182 | 千吨 | 2026-9 |