| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1991/1992 | 1205 | 千公顷 | 2026-9 |
| 1990/1991 | 1237 | 千公顷 | 2026-9 |
| 1989/1990 | 1239 | 千公顷 | 2026-9 |
| 1988/1989 | 1239 | 千公顷 | 2026-9 |
| 1987/1988 | 1212 | 千公顷 | 2026-9 |
| 1986/1987 | 1205 | 千公顷 | 2026-9 |
| 1985/1986 | 1209 | 千公顷 | 2026-9 |
| 1984/1985 | 1201 | 千公顷 | 2026-9 |
| 1983/1984 | 1190 | 千公顷 | 2026-9 |
| 1982/1983 | 1068 | 千公顷 | 2026-9 |
| 1981/1982 | 1083 | 千公顷 | 2026-9 |
| 1980/1981 | 1189 | 千公顷 | 2026-9 |
| 1979/1980 | 1111 | 千公顷 | 2026-9 |
| 1978/1979 | 1274 | 千公顷 | 2026-9 |
| 1977/1978 | 1287 | 千公顷 | 2026-9 |
| 1976/1977 | 1278 | 千公顷 | 2026-9 |
| 1975/1976 | 1183 | 千公顷 | 2026-9 |
| 1974/1975 | 1276 | 千公顷 | 2026-9 |
| 1973/1974 | 1235 | 千公顷 | 2026-9 |
| 1972/1973 | 1197 | 千公顷 | 2026-9 |
| 1971/1972 | 1103 | 千公顷 | 2026-9 |
| 1970/1971 | 1081 | 千公顷 | 2026-9 |
| 1969/1970 | 1054 | 千公顷 | 2026-9 |
| 1968/1969 | 999 | 千公顷 | 2026-9 |
| 1967/1968 | 929 | 千公顷 | 2026-9 |
| 1966/1967 | 892 | 千公顷 | 2026-9 |
| 1965/1966 | 826 | 千公顷 | 2026-9 |
| 1964/1965 | 831 | 千公顷 | 2026-9 |
| 1963/1964 | 720 | 千公顷 | 2026-9 |
| 1962/1963 | 673 | 千公顷 | 2026-9 |
| 1961/1962 | 643 | 千公顷 | 2026-9 |
| 1960/1961 | 652 | 千公顷 | 2026-9 |