| 年度 | 数值 | 单位 | 发布日期 |
| 1998/1999 | 88.711 | 千吨 | 2026-9 |
| 1997/1998 | 95.381 | 千吨 | 2026-9 |
| 1996/1997 | 90.712 | 千吨 | 2026-9 |
| 1995/1996 | 79.373 | 千吨 | 2026-9 |
| 1994/1995 | 51.359 | 千吨 | 2026-9 |
| 1993/1994 | 34.017 | 千吨 | 2026-9 |
| 1992/1993 | 118.059 | 千吨 | 2026-9 |
| 1991/1992 | 110.055 | 千吨 | 2026-9 |
| 1990/1991 | 94.714 | 千吨 | 2026-9 |
| 1989/1990 | 116.725 | 千吨 | 2026-9 |
| 1988/1989 | 93.38 | 千吨 | 2026-9 |
| 1987/1988 | 109.388 | 千吨 | 2026-9 |
| 1986/1987 | 106.72 | 千吨 | 2026-9 |
| 1985/1986 | 104.719 | 千吨 | 2026-9 |
| 1984/1985 | 106.053 | 千吨 | 2026-9 |
| 1983/1984 | 88.044 | 千吨 | 2026-9 |
| 1982/1983 | 118.726 | 千吨 | 2026-9 |
| 1981/1982 | 108.721 | 千吨 | 2026-9 |
| 1980/1981 | 92.046 | 千吨 | 2026-9 |
| 1979/1980 | 105.386 | 千吨 | 2026-9 |
| 1978/1979 | 104.719 | 千吨 | 2026-9 |
| 1977/1978 | 110.055 | 千吨 | 2026-9 |
| 1976/1977 | 95.381 | 千吨 | 2026-9 |
| 1975/1976 | 107.387 | 千吨 | 2026-9 |
| 1974/1975 | 101.384 | 千吨 | 2026-9 |
| 1973/1974 | 127.397 | 千吨 | 2026-9 |
| 1972/1973 | 116.725 | 千吨 | 2026-9 |