| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.05 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.778 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.667 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.5 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.389 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.779 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.963 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.044 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.586 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.687 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.464 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.476 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.91 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.764 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.741 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.484 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.597 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.103 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.274 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.507 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.506 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.358 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.448 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.074 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.111 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.919 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.071 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.1 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.807 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.308 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.893 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.794 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.846 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.029 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.041 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.5 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.782 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.601 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.778 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.809 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.957 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.955 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.567 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.597 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.624 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.73 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.556 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.45 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.429 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.69 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.728 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.561 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.541 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.837 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.585 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.625 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.603 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.681 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.634 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.425 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.605 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.532 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.833 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.805 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.406 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.786 | 吨/公顷 | 2026-9 |