| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.704 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.697 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.71 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.655 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.698 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.675 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.665 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.688 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.639 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.691 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.652 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.626 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.608 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.598 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.657 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.604 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.59 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.551 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.563 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.597 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.572 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.546 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.515 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.441 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.451 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.459 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.374 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.369 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.41 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.362 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.384 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.32 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.325 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.228 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.197 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.121 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.144 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.121 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.157 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.141 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.104 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.111 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.12 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.054 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.97 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.07 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.914 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.964 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.986 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.933 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.903 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.986 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.928 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.904 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.794 | 吨/公顷 | 2026-9 |