| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 1986/1987 | 0 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0 | 吨/公顷 | 2026-9 |