| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1986/1987 | 13173 | 千公顷 | 2026-9 |
| 1985/1986 | 12604 | 千公顷 | 2026-9 |
| 1984/1985 | 12806 | 千公顷 | 2026-9 |
| 1983/1984 | 12400 | 千公顷 | 2026-9 |
| 1982/1983 | 11489 | 千公顷 | 2026-9 |
| 1981/1982 | 12470 | 千公顷 | 2026-9 |
| 1980/1981 | 11770 | 千公顷 | 2026-9 |
| 1979/1980 | 12239 | 千公顷 | 2026-9 |
| 1978/1979 | 12097 | 千公顷 | 2026-9 |
| 1977/1978 | 13026 | 千公顷 | 2026-9 |
| 1976/1977 | 11269 | 千公顷 | 2026-9 |
| 1975/1976 | 12107 | 千公顷 | 2026-9 |
| 1974/1975 | 11567 | 千公顷 | 2026-9 |
| 1973/1974 | 11887 | 千公顷 | 2026-9 |
| 1972/1973 | 11358 | 千公顷 | 2026-9 |
| 1971/1972 | 9632 | 千公顷 | 2026-9 |
| 1970/1971 | 9250 | 千公顷 | 2026-9 |
| 1969/1970 | 9300 | 千公顷 | 2026-9 |
| 1968/1969 | 8998 | 千公顷 | 2026-9 |
| 1967/1968 | 8688 | 千公顷 | 2026-9 |
| 1966/1967 | 7162 | 千公顷 | 2026-9 |
| 1965/1966 | 6628 | 千公顷 | 2026-9 |
| 1964/1965 | 5734 | 千公顷 | 2026-9 |
| 1963/1964 | 5719 | 千公顷 | 2026-9 |
| 1962/1963 | 6950 | 千公顷 | 2026-9 |
| 1961/1962 | 11533 | 千公顷 | 2026-9 |
| 1960/1961 | 12842 | 千公顷 | 2026-9 |