| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 133 | 千吨 | 2026-9 |
| 1997/1998 | 113 | 千吨 | 2026-9 |
| 1996/1997 | 130 | 千吨 | 2026-9 |
| 1995/1996 | 111 | 千吨 | 2026-9 |
| 1994/1995 | 139 | 千吨 | 2026-9 |
| 1993/1994 | 130 | 千吨 | 2026-9 |
| 1992/1993 | 240 | 千吨 | 2026-9 |
| 1991/1992 | 210 | 千吨 | 2026-9 |
| 1990/1991 | 159 | 千吨 | 2026-9 |
| 1989/1990 | 179 | 千吨 | 2026-9 |
| 1988/1989 | 205 | 千吨 | 2026-9 |
| 1987/1988 | 208 | 千吨 | 2026-9 |
| 1986/1987 | 187 | 千吨 | 2026-9 |
| 1985/1986 | 162 | 千吨 | 2026-9 |
| 1984/1985 | 168 | 千吨 | 2026-9 |
| 1983/1984 | 162 | 千吨 | 2026-9 |
| 1982/1983 | 137 | 千吨 | 2026-9 |
| 1981/1982 | 156 | 千吨 | 2026-9 |
| 1980/1981 | 112 | 千吨 | 2026-9 |
| 1979/1980 | 66 | 千吨 | 2026-9 |
| 1978/1979 | 41 | 千吨 | 2026-9 |
| 1977/1978 | 38 | 千吨 | 2026-9 |
| 1976/1977 | 32 | 千吨 | 2026-9 |
| 1975/1976 | 29 | 千吨 | 2026-9 |
| 1974/1975 | 0 | 千吨 | 2026-9 |
| 1973/1974 | 0 | 千吨 | 2026-9 |
| 1972/1973 | 0 | 千吨 | 2026-9 |