| 年度 | 数值 | 单位 | 发布日期 |
| 1999/2000 | 225000 | 吨 | 2026-9 |
| 1998/1999 | 233000 | 吨 | 2026-9 |
| 1997/1998 | 263000 | 吨 | 2026-9 |
| 1996/1997 | 249000 | 吨 | 2026-9 |
| 1995/1996 | 236000 | 吨 | 2026-9 |
| 1994/1995 | 168000 | 吨 | 2026-9 |
| 1993/1994 | 143000 | 吨 | 2026-9 |
| 1992/1993 | 158000 | 吨 | 2026-9 |
| 1991/1992 | 135000 | 吨 | 2026-9 |
| 1990/1991 | 144000 | 吨 | 2026-9 |
| 1989/1990 | 143000 | 吨 | 2026-9 |
| 1988/1989 | 127000 | 吨 | 2026-9 |
| 1987/1988 | 127000 | 吨 | 2026-9 |
| 1986/1987 | 113000 | 吨 | 2026-9 |
| 1985/1986 | 104000 | 吨 | 2026-9 |
| 1984/1985 | 57000 | 吨 | 2026-9 |
| 1983/1984 | 84000 | 吨 | 2026-9 |
| 1982/1983 | 112000 | 吨 | 2026-9 |
| 1981/1982 | 110000 | 吨 | 2026-9 |
| 1980/1981 | 108000 | 吨 | 2026-9 |
| 1979/1980 | 161000 | 吨 | 2026-9 |
| 1978/1979 | 96000 | 吨 | 2026-9 |
| 1977/1978 | 61000 | 吨 | 2026-9 |
| 1976/1977 | 141000 | 吨 | 2026-9 |
| 1975/1976 | 70000 | 吨 | 2026-9 |
| 1974/1975 | 156000 | 吨 | 2026-9 |
| 1973/1974 | 122000 | 吨 | 2026-9 |
| 1972/1973 | 170000 | 吨 | 2026-9 |
| 1971/1972 | 85000 | 吨 | 2026-9 |