| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 2093 | 千公顷 | 2026-9 |
| 1997/1998 | 2059 | 千公顷 | 2026-9 |
| 1996/1997 | 1960 | 千公顷 | 2026-9 |
| 1995/1996 | 1982 | 千公顷 | 2026-9 |
| 1994/1995 | 1895 | 千公顷 | 2026-9 |
| 1993/1994 | 1900 | 千公顷 | 2026-9 |
| 1992/1993 | 1919 | 千公顷 | 2026-9 |
| 1991/1992 | 1961 | 千公顷 | 2026-9 |
| 1990/1991 | 1918 | 千公顷 | 2026-9 |
| 1989/1990 | 1811 | 千公顷 | 2026-9 |
| 1988/1989 | 1733 | 千公顷 | 2026-9 |
| 1987/1988 | 1376 | 千公顷 | 2026-9 |
| 1986/1987 | 1127 | 千公顷 | 2026-9 |
| 1985/1986 | 921 | 千公顷 | 2026-9 |
| 1984/1985 | 854 | 千公顷 | 2026-9 |
| 1983/1984 | 914 | 千公顷 | 2026-9 |
| 1982/1983 | 930 | 千公顷 | 2026-9 |
| 1981/1982 | 881 | 千公顷 | 2026-9 |
| 1980/1981 | 737 | 千公顷 | 2026-9 |
| 1979/1980 | 765 | 千公顷 | 2026-9 |
| 1978/1979 | 644 | 千公顷 | 2026-9 |
| 1977/1978 | 626 | 千公顷 | 2026-9 |
| 1976/1977 | 582 | 千公顷 | 2026-9 |
| 1975/1976 | 543 | 千公顷 | 2026-9 |
| 1974/1975 | 476 | 千公顷 | 2026-9 |
| 1973/1974 | 461 | 千公顷 | 2026-9 |
| 1972/1973 | 457 | 千公顷 | 2026-9 |
| 1971/1972 | 372 | 千公顷 | 2026-9 |
| 1970/1971 | 405 | 千公顷 | 2026-9 |
| 1969/1970 | 315 | 千公顷 | 2026-9 |
| 1968/1969 | 289 | 千公顷 | 2026-9 |
| 1967/1968 | 285 | 千公顷 | 2026-9 |
| 1966/1967 | 282 | 千公顷 | 2026-9 |
| 1965/1966 | 265 | 千公顷 | 2026-9 |
| 1964/1965 | 278 | 千公顷 | 2026-9 |
| 1963/1964 | 295 | 千公顷 | 2026-9 |
| 1962/1963 | 251 | 千公顷 | 2026-9 |
| 1961/1962 | 275 | 千公顷 | 2026-9 |
| 1960/1961 | 256 | 千公顷 | 2026-9 |