| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1986/1987 | 8741 | 千公顷 | 2026-9 |
| 1985/1986 | 9520 | 千公顷 | 2026-9 |
| 1984/1985 | 9420 | 千公顷 | 2026-9 |
| 1983/1984 | 10300 | 千公顷 | 2026-9 |
| 1982/1983 | 9829 | 千公顷 | 2026-9 |
| 1981/1982 | 7551 | 千公顷 | 2026-9 |
| 1980/1981 | 8645 | 千公顷 | 2026-9 |
| 1979/1980 | 6476 | 千公顷 | 2026-9 |
| 1978/1979 | 7719 | 千公顷 | 2026-9 |
| 1977/1978 | 6697 | 千公顷 | 2026-9 |
| 1976/1977 | 9035 | 千公顷 | 2026-9 |
| 1975/1976 | 8010 | 千公顷 | 2026-9 |
| 1974/1975 | 9810 | 千公顷 | 2026-9 |
| 1973/1974 | 7012 | 千公顷 | 2026-9 |
| 1972/1973 | 8160 | 千公顷 | 2026-9 |
| 1971/1972 | 9507 | 千公顷 | 2026-9 |
| 1970/1971 | 10020 | 千公顷 | 2026-9 |
| 1969/1970 | 9237 | 千公顷 | 2026-9 |
| 1968/1969 | 12269 | 千公顷 | 2026-9 |
| 1967/1968 | 12418 | 千公顷 | 2026-9 |
| 1966/1967 | 13583 | 千公顷 | 2026-9 |
| 1965/1966 | 16030 | 千公顷 | 2026-9 |
| 1964/1965 | 16807 | 千公顷 | 2026-9 |
| 1963/1964 | 15025 | 千公顷 | 2026-9 |
| 1962/1963 | 16938 | 千公顷 | 2026-9 |
| 1961/1962 | 16800 | 千公顷 | 2026-9 |
| 1960/1961 | 16250 | 千公顷 | 2026-9 |