| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.074 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.103 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.129 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.172 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.182 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.214 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.218 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.2 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.238 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.286 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.314 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.318 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.4 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.444 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.333 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.378 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.383 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.321 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.29 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.3 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.312 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.28 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.289 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.302 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.418 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.281 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.236 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.182 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.187 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.198 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.237 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.185 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.137 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.112 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.157 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.125 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.098 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.091 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.092 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.978 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.979 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.971 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.895 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.838 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.857 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.869 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.892 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.867 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.842 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.81 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.808 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.785 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.767 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.72 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.742 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.759 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.717 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.702 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.62 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.706 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.689 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.703 | 吨/公顷 | 2026-9 |