| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 583 | 千吨 | 2026-9 |
| 1997/1998 | 400 | 千吨 | 2026-9 |
| 1996/1997 | 580 | 千吨 | 2026-9 |
| 1995/1996 | 485 | 千吨 | 2026-9 |
| 1994/1995 | 450 | 千吨 | 2026-9 |
| 1993/1994 | 443 | 千吨 | 2026-9 |
| 1992/1993 | 655 | 千吨 | 2026-9 |
| 1991/1992 | 730 | 千吨 | 2026-9 |
| 1990/1991 | 628 | 千吨 | 2026-9 |
| 1989/1990 | 618 | 千吨 | 2026-9 |
| 1988/1989 | 642 | 千吨 | 2026-9 |
| 1987/1988 | 674 | 千吨 | 2026-9 |
| 1986/1987 | 652 | 千吨 | 2026-9 |
| 1985/1986 | 594 | 千吨 | 2026-9 |
| 1984/1985 | 522 | 千吨 | 2026-9 |
| 1983/1984 | 506 | 千吨 | 2026-9 |
| 1982/1983 | 448 | 千吨 | 2026-9 |
| 1981/1982 | 474 | 千吨 | 2026-9 |
| 1980/1981 | 353 | 千吨 | 2026-9 |
| 1979/1980 | 267 | 千吨 | 2026-9 |
| 1978/1979 | 155 | 千吨 | 2026-9 |
| 1977/1978 | 167 | 千吨 | 2026-9 |
| 1976/1977 | 145 | 千吨 | 2026-9 |
| 1975/1976 | 117 | 千吨 | 2026-9 |
| 1974/1975 | 83 | 千吨 | 2026-9 |
| 1973/1974 | 117 | 千吨 | 2026-9 |
| 1972/1973 | 98 | 千吨 | 2026-9 |