| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1999/2000 | 2000 | 吨 | 2026-9 |
| 1998/1999 | 1711 | 吨 | 2026-9 |
| 1997/1998 | 2808 | 吨 | 2026-9 |
| 1996/1997 | 2193 | 吨 | 2026-9 |
| 1995/1996 | 1756 | 吨 | 2026-9 |
| 1994/1995 | 1600 | 吨 | 2026-9 |
| 1993/1994 | 3000 | 吨 | 2026-9 |
| 1992/1993 | 3000 | 吨 | 2026-9 |
| 1991/1992 | 2608 | 吨 | 2026-9 |
| 1990/1991 | 2437 | 吨 | 2026-9 |
| 1989/1990 | 3297 | 吨 | 2026-9 |
| 1988/1989 | 4025 | 吨 | 2026-9 |
| 1987/1988 | 1878 | 吨 | 2026-9 |
| 1986/1987 | 4241 | 吨 | 2026-9 |
| 1985/1986 | 4732 | 吨 | 2026-9 |
| 1984/1985 | 7485 | 吨 | 2026-9 |
| 1983/1984 | 6022 | 吨 | 2026-9 |
| 1982/1983 | 10566 | 吨 | 2026-9 |
| 1976/1977 | 0 | 吨 | 2026-9 |
| 1975/1976 | 24000 | 吨 | 2026-9 |
| 1974/1975 | 16000 | 吨 | 2026-9 |
| 1973/1974 | 9000 | 吨 | 2026-9 |
| 1972/1973 | 13000 | 吨 | 2026-9 |
| 1971/1972 | 11000 | 吨 | 2026-9 |
| 1970/1971 | 11000 | 吨 | 2026-9 |