| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 0.591 | 吨/公顷 | 2026-9 |
| 2025/2026 | 0.583 | 吨/公顷 | 2026-9 |
| 2024/2025 | 0.594 | 吨/公顷 | 2026-9 |
| 2023/2024 | 0.607 | 吨/公顷 | 2026-9 |
| 2022/2023 | 0.578 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.58 | 吨/公顷 | 2026-9 |
| 2020/2021 | 0.553 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.569 | 吨/公顷 | 2026-9 |
| 2018/2019 | 0.582 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.573 | 吨/公顷 | 2026-9 |
| 2016/2017 | 0.523 | 吨/公顷 | 2026-9 |
| 2015/2016 | 0.491 | 吨/公顷 | 2026-9 |
| 2014/2015 | 0.512 | 吨/公顷 | 2026-9 |
| 2013/2014 | 0.503 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.512 | 吨/公顷 | 2026-9 |
| 2011/2012 | 0.492 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.526 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.521 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.526 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.509 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.492 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.653 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.662 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.632 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.614 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.609 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.705 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.691 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.546 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.688 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.767 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.629 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.688 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.601 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.599 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.576 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.589 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.676 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.563 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.575 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.63 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.731 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.649 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.456 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.664 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.7 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.752 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.924 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.504 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.826 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.842 | 吨/公顷 | 2026-9 |
| 1975/1976 | 2.148 | 吨/公顷 | 2026-9 |
| 1974/1975 | 2.102 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.626 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.967 | 吨/公顷 | 2026-9 |
| 1971/1972 | 2.261 | 吨/公顷 | 2026-9 |
| 1970/1971 | 2.067 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.978 | 吨/公顷 | 2026-9 |
| 1968/1969 | 2.09 | 吨/公顷 | 2026-9 |
| 1967/1968 | 2.29 | 吨/公顷 | 2026-9 |
| 1966/1967 | 2.216 | 吨/公顷 | 2026-9 |
| 1965/1966 | 34.02 | 吨/公顷 | 2026-9 |
| 1964/1965 | 32.06 | 吨/公顷 | 2026-9 |