| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1991/1992 | 127 | 千公顷 | 2026-9 |
| 1990/1991 | 171 | 千公顷 | 2026-9 |
| 1989/1990 | 175 | 千公顷 | 2026-9 |
| 1988/1989 | 143 | 千公顷 | 2026-9 |
| 1987/1988 | 142 | 千公顷 | 2026-9 |
| 1986/1987 | 155 | 千公顷 | 2026-9 |
| 1985/1986 | 179 | 千公顷 | 2026-9 |
| 1984/1985 | 192 | 千公顷 | 2026-9 |
| 1983/1984 | 203 | 千公顷 | 2026-9 |
| 1982/1983 | 176 | 千公顷 | 2026-9 |
| 1981/1982 | 171 | 千公顷 | 2026-9 |
| 1980/1981 | 177 | 千公顷 | 2026-9 |
| 1979/1980 | 166 | 千公顷 | 2026-9 |
| 1978/1979 | 187 | 千公顷 | 2026-9 |
| 1977/1978 | 212 | 千公顷 | 2026-9 |
| 1976/1977 | 210 | 千公顷 | 2026-9 |
| 1975/1976 | 191 | 千公顷 | 2026-9 |
| 1974/1975 | 218 | 千公顷 | 2026-9 |
| 1973/1974 | 225 | 千公顷 | 2026-9 |
| 1972/1973 | 232 | 千公顷 | 2026-9 |
| 1971/1972 | 234 | 千公顷 | 2026-9 |
| 1970/1971 | 219 | 千公顷 | 2026-9 |
| 1969/1970 | 275 | 千公顷 | 2026-9 |
| 1968/1969 | 338 | 千公顷 | 2026-9 |
| 1967/1968 | 321 | 千公顷 | 2026-9 |
| 1966/1967 | 395 | 千公顷 | 2026-9 |
| 1965/1966 | 410 | 千公顷 | 2026-9 |
| 1964/1965 | 406 | 千公顷 | 2026-9 |
| 1963/1964 | 426 | 千公顷 | 2026-9 |
| 1962/1963 | 441 | 千公顷 | 2026-9 |
| 1961/1962 | 463 | 千公顷 | 2026-9 |
| 1960/1961 | 431 | 千公顷 | 2026-9 |