| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 238 | 千吨 | 2026-9 |
| 1997/1998 | 161 | 千吨 | 2026-9 |
| 1996/1997 | 230 | 千吨 | 2026-9 |
| 1995/1996 | 210 | 千吨 | 2026-9 |
| 1994/1995 | 190 | 千吨 | 2026-9 |
| 1993/1994 | 200 | 千吨 | 2026-9 |
| 1992/1993 | 286 | 千吨 | 2026-9 |
| 1991/1992 | 317 | 千吨 | 2026-9 |
| 1990/1991 | 298 | 千吨 | 2026-9 |
| 1989/1990 | 267 | 千吨 | 2026-9 |
| 1988/1989 | 280 | 千吨 | 2026-9 |
| 1987/1988 | 295 | 千吨 | 2026-9 |
| 1986/1987 | 260 | 千吨 | 2026-9 |
| 1985/1986 | 256 | 千吨 | 2026-9 |
| 1984/1985 | 230 | 千吨 | 2026-9 |
| 1983/1984 | 223 | 千吨 | 2026-9 |
| 1982/1983 | 203 | 千吨 | 2026-9 |
| 1981/1982 | 225 | 千吨 | 2026-9 |
| 1980/1981 | 155 | 千吨 | 2026-9 |
| 1979/1980 | 117 | 千吨 | 2026-9 |
| 1978/1979 | 68 | 千吨 | 2026-9 |
| 1977/1978 | 73 | 千吨 | 2026-9 |
| 1976/1977 | 64 | 千吨 | 2026-9 |
| 1975/1976 | 51 | 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 |