| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 2631 | 千公顷 | 2026-9 |
| 1997/1998 | 2555 | 千公顷 | 2026-9 |
| 1996/1997 | 2480 | 千公顷 | 2026-9 |
| 1995/1996 | 2407 | 千公顷 | 2026-9 |
| 1994/1995 | 2407 | 千公顷 | 2026-9 |
| 1993/1994 | 2500 | 千公顷 | 2026-9 |
| 1992/1993 | 2405 | 千公顷 | 2026-9 |
| 1991/1992 | 2437 | 千公顷 | 2026-9 |
| 1990/1991 | 2281 | 千公顷 | 2026-9 |
| 1989/1990 | 2195 | 千公顷 | 2026-9 |
| 1988/1989 | 2179 | 千公顷 | 2026-9 |
| 1987/1988 | 2132 | 千公顷 | 2026-9 |
| 1986/1987 | 2025 | 千公顷 | 2026-9 |
| 1985/1986 | 1885 | 千公顷 | 2026-9 |
| 1984/1985 | 1707 | 千公顷 | 2026-9 |
| 1983/1984 | 1537 | 千公顷 | 2026-9 |
| 1982/1983 | 1456 | 千公顷 | 2026-9 |
| 1981/1982 | 1418 | 千公顷 | 2026-9 |
| 1980/1981 | 1609 | 千公顷 | 2026-9 |
| 1979/1980 | 1549 | 千公顷 | 2026-9 |
| 1978/1979 | 1852 | 千公顷 | 2026-9 |
| 1977/1978 | 1834 | 千公顷 | 2026-9 |
| 1976/1977 | 1832 | 千公顷 | 2026-9 |
| 1975/1976 | 1842 | 千公顷 | 2026-9 |
| 1974/1975 | 2022 | 千公顷 | 2026-9 |
| 1973/1974 | 1962 | 千公顷 | 2026-9 |
| 1972/1973 | 2048 | 千公顷 | 2026-9 |
| 1971/1972 | 2060 | 千公顷 | 2026-9 |
| 1970/1971 | 1985 | 千公顷 | 2026-9 |
| 1969/1970 | 1965 | 千公顷 | 2026-9 |
| 1968/1969 | 1844 | 千公顷 | 2026-9 |
| 1967/1968 | 1723 | 千公顷 | 2026-9 |
| 1966/1967 | 1657 | 千公顷 | 2026-9 |
| 1965/1966 | 1617 | 千公顷 | 2026-9 |
| 1964/1965 | 1626 | 千公顷 | 2026-9 |
| 1963/1964 | 1541 | 千公顷 | 2026-9 |
| 1962/1963 | 1393 | 千公顷 | 2026-9 |
| 1961/1962 | 1401 | 千公顷 | 2026-9 |
| 1960/1961 | 1361 | 千公顷 | 2026-9 |