| 年度 | 数值 | 单位 | 发布日期 |
| 1998/1999 | 238.786 | 千吨 | 2026-9 |
| 1997/1998 | 262.798 | 千吨 | 2026-9 |
| 1996/1997 | 343.505 | 千吨 | 2026-9 |
| 1995/1996 | 278.806 | 千吨 | 2026-9 |
| 1994/1995 | 293.48 | 千吨 | 2026-9 |
| 1993/1994 | 262.798 | 千吨 | 2026-9 |
| 1992/1993 | 141.404 | 千吨 | 2026-9 |
| 1991/1992 | 148.741 | 千吨 | 2026-9 |
| 1990/1991 | 208.104 | 千吨 | 2026-9 |
| 1989/1990 | 243.455 | 千吨 | 2026-9 |
| 1988/1989 | 142.738 | 千吨 | 2026-9 |
| 1987/1988 | 180.09 | 千吨 | 2026-9 |
| 1986/1987 | 210.772 | 千吨 | 2026-9 |
| 1985/1986 | 182.091 | 千吨 | 2026-9 |
| 1984/1985 | 180.09 | 千吨 | 2026-9 |
| 1983/1984 | 158.746 | 千吨 | 2026-9 |
| 1982/1983 | 263.465 | 千吨 | 2026-9 |
| 1981/1982 | 184.759 | 千吨 | 2026-9 |
| 1980/1981 | 186.093 | 千吨 | 2026-9 |
| 1979/1980 | 200.1 | 千吨 | 2026-9 |
| 1978/1979 | 183.425 | 千吨 | 2026-9 |
| 1977/1978 | 256.795 | 千吨 | 2026-9 |
| 1976/1977 | 254.127 | 千吨 | 2026-9 |
| 1975/1976 | 232.783 | 千吨 | 2026-9 |
| 1974/1975 | 217.442 | 千吨 | 2026-9 |
| 1973/1974 | 236.785 | 千吨 | 2026-9 |
| 1972/1973 | 261.464 | 千吨 | 2026-9 |