| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1990/1991 | 1673 | 千吨 | 2026-9 |
| 1989/1990 | 1666 | 千吨 | 2026-9 |
| 1988/1989 | 1496 | 千吨 | 2026-9 |
| 1987/1988 | 1482 | 千吨 | 2026-9 |
| 1986/1987 | 1431 | 千吨 | 2026-9 |
| 1985/1986 | 1400 | 千吨 | 2026-9 |
| 1984/1985 | 1224 | 千吨 | 2026-9 |
| 1983/1984 | 980 | 千吨 | 2026-9 |
| 1982/1983 | 1257 | 千吨 | 2026-9 |
| 1981/1982 | 1172 | 千吨 | 2026-9 |
| 1980/1981 | 1011 | 千吨 | 2026-9 |
| 1979/1980 | 1268 | 千吨 | 2026-9 |
| 1978/1979 | 1365 | 千吨 | 2026-9 |
| 1977/1978 | 1023 | 千吨 | 2026-9 |
| 1976/1977 | 943 | 千吨 | 2026-9 |
| 1975/1976 | 917 | 千吨 | 2026-9 |
| 1974/1975 | 974 | 千吨 | 2026-9 |
| 1973/1974 | 981 | 千吨 | 2026-9 |
| 1972/1973 | 710 | 千吨 | 2026-9 |
| 1971/1972 | 655 | 千吨 | 2026-9 |
| 1970/1971 | 686 | 千吨 | 2026-9 |
| 1969/1970 | 676 | 千吨 | 2026-9 |
| 1968/1969 | 485 | 千吨 | 2026-9 |
| 1967/1968 | 497 | 千吨 | 2026-9 |
| 1966/1967 | 475 | 千吨 | 2026-9 |
| 1965/1966 | 424 | 千吨 | 2026-9 |
| 1964/1965 | 359 | 千吨 | 2026-9 |