| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 110 | 千吨 | 2026-9 |
| 1997/1998 | 88 | 千吨 | 2026-9 |
| 1996/1997 | 105 | 千吨 | 2026-9 |
| 1995/1996 | 102 | 千吨 | 2026-9 |
| 1994/1995 | 84 | 千吨 | 2026-9 |
| 1993/1994 | 81 | 千吨 | 2026-9 |
| 1992/1993 | 78 | 千吨 | 2026-9 |
| 1991/1992 | 85 | 千吨 | 2026-9 |
| 1990/1991 | 90 | 千吨 | 2026-9 |
| 1989/1990 | 84 | 千吨 | 2026-9 |
| 1988/1989 | 79 | 千吨 | 2026-9 |
| 1987/1988 | 82 | 千吨 | 2026-9 |
| 1986/1987 | 73 | 千吨 | 2026-9 |
| 1985/1986 | 89 | 千吨 | 2026-9 |
| 1984/1985 | 62 | 千吨 | 2026-9 |
| 1983/1984 | 61 | 千吨 | 2026-9 |
| 1982/1983 | 66 | 千吨 | 2026-9 |
| 1981/1982 | 69 | 千吨 | 2026-9 |
| 1980/1981 | 43 | 千吨 | 2026-9 |
| 1979/1980 | 51 | 千吨 | 2026-9 |
| 1978/1979 | 27 | 千吨 | 2026-9 |
| 1977/1978 | 35 | 千吨 | 2026-9 |
| 1976/1977 | 32 | 千吨 | 2026-9 |
| 1975/1976 | 22 | 千吨 | 2026-9 |
| 1974/1975 | 36 | 千吨 | 2026-9 |
| 1973/1974 | 51 | 千吨 | 2026-9 |
| 1972/1973 | 43 | 千吨 | 2026-9 |