| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 561 | 千公顷 | 2026-9 |
| 1997/1998 | 626 | 千公顷 | 2026-9 |
| 1996/1997 | 625 | 千公顷 | 2026-9 |
| 1995/1996 | 595 | 千公顷 | 2026-9 |
| 1994/1995 | 618 | 千公顷 | 2026-9 |
| 1993/1994 | 642 | 千公顷 | 2026-9 |
| 1992/1993 | 667 | 千公顷 | 2026-9 |
| 1991/1992 | 686 | 千公顷 | 2026-9 |
| 1990/1991 | 747 | 千公顷 | 2026-9 |
| 1989/1990 | 803 | 千公顷 | 2026-9 |
| 1988/1989 | 850 | 千公顷 | 2026-9 |
| 1987/1988 | 856 | 千公顷 | 2026-9 |
| 1986/1987 | 924 | 千公顷 | 2026-9 |
| 1985/1986 | 994 | 千公顷 | 2026-9 |
| 1984/1985 | 934 | 千公顷 | 2026-9 |
| 1983/1984 | 1042 | 千公顷 | 2026-9 |
| 1982/1983 | 1086 | 千公顷 | 2026-9 |
| 1981/1982 | 1156 | 千公顷 | 2026-9 |
| 1980/1981 | 997 | 千公顷 | 2026-9 |
| 1979/1980 | 1094 | 千公顷 | 2026-9 |
| 1978/1979 | 1030 | 千公顷 | 2026-9 |
| 1977/1978 | 1097 | 千公顷 | 2026-9 |
| 1976/1977 | 1115 | 千公顷 | 2026-9 |
| 1975/1976 | 1291 | 千公顷 | 2026-9 |
| 1974/1975 | 1182 | 千公顷 | 2026-9 |
| 1973/1974 | 1271 | 千公顷 | 2026-9 |
| 1972/1973 | 1359 | 千公顷 | 2026-9 |
| 1971/1972 | 1330 | 千公顷 | 2026-9 |
| 1970/1971 | 1530 | 千公顷 | 2026-9 |
| 1969/1970 | 1367 | 千公顷 | 2026-9 |
| 1968/1969 | 1365 | 千公顷 | 2026-9 |
| 1967/1968 | 1403 | 千公顷 | 2026-9 |
| 1966/1967 | 1381 | 千公顷 | 2026-9 |
| 1965/1966 | 1314 | 千公顷 | 2026-9 |
| 1964/1965 | 1561 | 千公顷 | 2026-9 |
| 1963/1964 | 1682 | 千公顷 | 2026-9 |
| 1962/1963 | 1584 | 千公顷 | 2026-9 |
| 1961/1962 | 1602 | 千公顷 | 2026-9 |
| 1960/1961 | 1641 | 千公顷 | 2026-9 |