| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3.02 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.008 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.93 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.819 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.756 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.74 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.838 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.752 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.883 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.745 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.91 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.615 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.698 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.503 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.437 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.34 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.553 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.54 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.197 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.406 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.483 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.373 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.308 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.107 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.413 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.322 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.326 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.23 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.242 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.305 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.114 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.042 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.215 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.951 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.071 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.953 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.917 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.837 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.722 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.917 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.901 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.866 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.733 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.638 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.795 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.723 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.626 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.817 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.638 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.662 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.494 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.654 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.384 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.598 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.484 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.531 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.492 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.458 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.455 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.351 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.379 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.233 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.141 | 吨/公顷 | 2026-9 |