| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.105 | 吨/公顷 | 2026-9 |
| 2023/2024 | 0.988 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.028 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.9 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.061 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.991 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.012 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.819 | 吨/公顷 | 2026-9 |
| 2016/2017 | 0.959 | 吨/公顷 | 2026-9 |
| 2015/2016 | 0.994 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.103 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.04 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.076 | 吨/公顷 | 2026-9 |
| 2011/2012 | 0.892 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.004 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.921 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.986 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.937 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.14 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.092 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.973 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.96 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.925 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.928 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.829 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.667 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.929 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.671 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.781 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.794 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.795 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.888 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.923 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.846 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.689 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.779 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.832 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.811 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.027 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.664 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.554 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.568 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.581 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.608 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.572 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.59 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.578 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.606 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.63 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.647 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.588 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.464 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.532 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.538 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.541 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.5 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.638 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.46 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.531 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.55 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.563 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.507 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.488 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.453 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.463 | 吨/公顷 | 2026-9 |