| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1999/2000 | 48000 | 吨 | 2026-9 |
| 1998/1999 | 47366 | 吨 | 2026-9 |
| 1997/1998 | 46618 | 吨 | 2026-9 |
| 1996/1997 | 40402 | 吨 | 2026-9 |
| 1995/1996 | 38057 | 吨 | 2026-9 |
| 1994/1995 | 31600 | 吨 | 2026-9 |
| 1993/1994 | 25000 | 吨 | 2026-9 |
| 1992/1993 | 30000 | 吨 | 2026-9 |
| 1991/1992 | 38953 | 吨 | 2026-9 |
| 1990/1991 | 44935 | 吨 | 2026-9 |
| 1989/1990 | 49244 | 吨 | 2026-9 |
| 1988/1989 | 50319 | 吨 | 2026-9 |
| 1987/1988 | 67959 | 吨 | 2026-9 |
| 1986/1987 | 54593 | 吨 | 2026-9 |
| 1985/1986 | 44699 | 吨 | 2026-9 |
| 1984/1985 | 36840 | 吨 | 2026-9 |
| 1983/1984 | 42583 | 吨 | 2026-9 |
| 1982/1983 | 40346 | 吨 | 2026-9 |
| 1976/1977 | 0 | 吨 | 2026-9 |
| 1975/1976 | 20000 | 吨 | 2026-9 |
| 1974/1975 | 23000 | 吨 | 2026-9 |
| 1973/1974 | 19000 | 吨 | 2026-9 |
| 1972/1973 | 18000 | 吨 | 2026-9 |
| 1971/1972 | 17000 | 吨 | 2026-9 |
| 1970/1971 | 16000 | 吨 | 2026-9 |