| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 1100 | 千公顷 | 2026-9 |
| 1997/1998 | 1100 | 千公顷 | 2026-9 |
| 1996/1997 | 900 | 千公顷 | 2026-9 |
| 1995/1996 | 1041 | 千公顷 | 2026-9 |
| 1994/1995 | 1320 | 千公顷 | 2026-9 |
| 1993/1994 | 1270 | 千公顷 | 2026-9 |
| 1992/1993 | 1107 | 千公顷 | 2026-9 |
| 1991/1992 | 1200 | 千公顷 | 2026-9 |
| 1990/1991 | 1163 | 千公顷 | 2026-9 |
| 1989/1990 | 1138 | 千公顷 | 2026-9 |
| 1988/1989 | 1182 | 千公顷 | 2026-9 |
| 1987/1988 | 1085 | 千公顷 | 2026-9 |
| 1986/1987 | 1127 | 千公顷 | 2026-9 |
| 1985/1986 | 1067 | 千公顷 | 2026-9 |
| 1984/1985 | 1126 | 千公顷 | 2026-9 |
| 1983/1984 | 1128 | 千公顷 | 2026-9 |
| 1982/1983 | 1059 | 千公顷 | 2026-9 |
| 1981/1982 | 1032 | 千公顷 | 2026-9 |
| 1980/1981 | 968 | 千公顷 | 2026-9 |
| 1979/1980 | 958 | 千公顷 | 2026-9 |
| 1978/1979 | 935 | 千公顷 | 2026-9 |
| 1977/1978 | 910 | 千公顷 | 2026-9 |
| 1976/1977 | 918 | 千公顷 | 2026-9 |
| 1975/1976 | 912 | 千公顷 | 2026-9 |
| 1974/1975 | 904 | 千公顷 | 2026-9 |
| 1973/1974 | 934 | 千公顷 | 2026-9 |
| 1972/1973 | 961 | 千公顷 | 2026-9 |
| 1971/1972 | 1013 | 千公顷 | 2026-9 |
| 1970/1971 | 1014 | 千公顷 | 2026-9 |
| 1969/1970 | 1040 | 千公顷 | 2026-9 |
| 1968/1969 | 1060 | 千公顷 | 2026-9 |
| 1967/1968 | 1065 | 千公顷 | 2026-9 |
| 1966/1967 | 1143 | 千公顷 | 2026-9 |
| 1965/1966 | 1147 | 千公顷 | 2026-9 |
| 1964/1965 | 1196 | 千公顷 | 2026-9 |
| 1963/1964 | 1190 | 千公顷 | 2026-9 |
| 1962/1963 | 1248 | 千公顷 | 2026-9 |
| 1961/1962 | 1317 | 千公顷 | 2026-9 |
| 1960/1961 | 1257 | 千公顷 | 2026-9 |