| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1991/1992 | 130 | 千公顷 | 2026-9 |
| 1990/1991 | 139 | 千公顷 | 2026-9 |
| 1989/1990 | 144 | 千公顷 | 2026-9 |
| 1988/1989 | 135 | 千公顷 | 2026-9 |
| 1987/1988 | 140 | 千公顷 | 2026-9 |
| 1986/1987 | 152 | 千公顷 | 2026-9 |
| 1985/1986 | 151 | 千公顷 | 2026-9 |
| 1984/1985 | 153 | 千公顷 | 2026-9 |
| 1983/1984 | 168 | 千公顷 | 2026-9 |
| 1982/1983 | 176 | 千公顷 | 2026-9 |
| 1981/1982 | 194 | 千公顷 | 2026-9 |
| 1980/1981 | 194 | 千公顷 | 2026-9 |
| 1979/1980 | 209 | 千公顷 | 2026-9 |
| 1978/1979 | 210 | 千公顷 | 2026-9 |
| 1977/1978 | 231 | 千公顷 | 2026-9 |
| 1976/1977 | 232 | 千公顷 | 2026-9 |
| 1975/1976 | 270 | 千公顷 | 2026-9 |
| 1974/1975 | 248 | 千公顷 | 2026-9 |
| 1973/1974 | 251 | 千公顷 | 2026-9 |
| 1972/1973 | 256 | 千公顷 | 2026-9 |
| 1971/1972 | 265 | 千公顷 | 2026-9 |
| 1970/1971 | 283 | 千公顷 | 2026-9 |
| 1969/1970 | 273 | 千公顷 | 2026-9 |
| 1968/1969 | 285 | 千公顷 | 2026-9 |
| 1967/1968 | 301 | 千公顷 | 2026-9 |
| 1966/1967 | 320 | 千公顷 | 2026-9 |
| 1965/1966 | 321 | 千公顷 | 2026-9 |
| 1964/1965 | 306 | 千公顷 | 2026-9 |
| 1963/1964 | 315 | 千公顷 | 2026-9 |
| 1962/1963 | 310 | 千公顷 | 2026-9 |
| 1961/1962 | 355 | 千公顷 | 2026-9 |
| 1960/1961 | 334 | 千公顷 | 2026-9 |