| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1998/1999 | 13000 | 吨 | 2026-9 |
| 1997/1998 | 20400 | 吨 | 2026-9 |
| 1996/1997 | 16500 | 吨 | 2026-9 |
| 1995/1996 | 14800 | 吨 | 2026-9 |
| 1994/1995 | 19200 | 吨 | 2026-9 |
| 1993/1994 | 13400 | 吨 | 2026-9 |
| 1992/1993 | 15500 | 吨 | 2026-9 |
| 1991/1992 | 13900 | 吨 | 2026-9 |
| 1990/1991 | 11100 | 吨 | 2026-9 |
| 1989/1990 | 23700 | 吨 | 2026-9 |
| 1988/1989 | 28200 | 吨 | 2026-9 |
| 1987/1988 | 20400 | 吨 | 2026-9 |
| 1986/1987 | 22000 | 吨 | 2026-9 |
| 1985/1986 | 26800 | 吨 | 2026-9 |
| 1984/1985 | 29600 | 吨 | 2026-9 |
| 1983/1984 | 23100 | 吨 | 2026-9 |
| 1982/1983 | 17900 | 吨 | 2026-9 |
| 1981/1982 | 25500 | 吨 | 2026-9 |