| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 1138 | 千公顷 | 2026-9 |
| 1997/1998 | 1242 | 千公顷 | 2026-9 |
| 1996/1997 | 1130 | 千公顷 | 2026-9 |
| 1995/1996 | 1048 | 千公顷 | 2026-9 |
| 1994/1995 | 1032 | 千公顷 | 2026-9 |
| 1993/1994 | 1200 | 千公顷 | 2026-9 |
| 1992/1993 | 1198 | 千公顷 | 2026-9 |
| 1991/1992 | 1237 | 千公顷 | 2026-9 |
| 1990/1991 | 1174 | 千公顷 | 2026-9 |
| 1989/1990 | 1175 | 千公顷 | 2026-9 |
| 1988/1989 | 1250 | 千公顷 | 2026-9 |
| 1987/1988 | 1286 | 千公顷 | 2026-9 |
| 1986/1987 | 1335 | 千公顷 | 2026-9 |
| 1985/1986 | 1242 | 千公顷 | 2026-9 |
| 1984/1985 | 1054 | 千公顷 | 2026-9 |
| 1983/1984 | 1099 | 千公顷 | 2026-9 |
| 1982/1983 | 1236 | 千公顷 | 2026-9 |
| 1981/1982 | 1294 | 千公顷 | 2026-9 |
| 1980/1981 | 1322 | 千公顷 | 2026-9 |
| 1979/1980 | 1470 | 千公顷 | 2026-9 |
| 1978/1979 | 1202 | 千公顷 | 2026-9 |
| 1977/1978 | 1235 | 千公顷 | 2026-9 |
| 1976/1977 | 1210 | 千公顷 | 2026-9 |
| 1975/1976 | 1335 | 千公顷 | 2026-9 |
| 1974/1975 | 1230 | 千公顷 | 2026-9 |
| 1973/1974 | 1083 | 千公顷 | 2026-9 |
| 1972/1973 | 1016 | 千公顷 | 2026-9 |
| 1971/1972 | 899 | 千公顷 | 2026-9 |
| 1970/1971 | 924 | 千公顷 | 2026-9 |
| 1969/1970 | 759 | 千公顷 | 2026-9 |
| 1968/1969 | 628 | 千公顷 | 2026-9 |
| 1967/1968 | 645 | 千公顷 | 2026-9 |
| 1966/1967 | 678 | 千公顷 | 2026-9 |
| 1965/1966 | 688 | 千公顷 | 2026-9 |
| 1964/1965 | 741 | 千公顷 | 2026-9 |
| 1963/1964 | 748 | 千公顷 | 2026-9 |
| 1962/1963 | 663 | 千公顷 | 2026-9 |
| 1961/1962 | 680 | 千公顷 | 2026-9 |
| 1960/1961 | 717 | 千公顷 | 2026-9 |