| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1999/2000 | 40000 | 吨 | 2026-9 |
| 1998/1999 | 59000 | 吨 | 2026-9 |
| 1997/1998 | 56000 | 吨 | 2026-9 |
| 1996/1997 | 34200 | 吨 | 2026-9 |
| 1995/1996 | 75000 | 吨 | 2026-9 |
| 1994/1995 | 30000 | 吨 | 2026-9 |
| 1993/1994 | 25800 | 吨 | 2026-9 |
| 1992/1993 | 4100 | 吨 | 2026-9 |
| 1991/1992 | 11900 | 吨 | 2026-9 |
| 1990/1991 | 4000 | 吨 | 2026-9 |
| 1989/1990 | 500 | 吨 | 2026-9 |
| 1988/1989 | 3600 | 吨 | 2026-9 |
| 1987/1988 | 100 | 吨 | 2026-9 |
| 1986/1987 | 1000 | 吨 | 2026-9 |
| 1985/1986 | 0 | 吨 | 2026-9 |
| 1984/1985 | 0 | 吨 | 2026-9 |
| 1983/1984 | 0 | 吨 | 2026-9 |
| 1982/1983 | 0 | 吨 | 2026-9 |
| 1976/1977 | 0 | 吨 | 2026-9 |
| 1975/1976 | 0 | 吨 | 2026-9 |
| 1974/1975 | 41000 | 吨 | 2026-9 |
| 1973/1974 | 0 | 吨 | 2026-9 |
| 1972/1973 | 0 | 吨 | 2026-9 |
| 1971/1972 | 0 | 吨 | 2026-9 |
| 1970/1971 | 2000 | 吨 | 2026-9 |