| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 0.458 | 吨/公顷 | 2026-9 |
| 2025/2026 | 0.384 | 吨/公顷 | 2026-9 |
| 2024/2025 | 0.416 | 吨/公顷 | 2026-9 |
| 2023/2024 | 0.471 | 吨/公顷 | 2026-9 |
| 2022/2023 | 0.325 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.492 | 吨/公顷 | 2026-9 |
| 2020/2021 | 0.503 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.338 | 吨/公顷 | 2026-9 |
| 2018/2019 | 0.502 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.493 | 吨/公顷 | 2026-9 |
| 2016/2017 | 0.253 | 吨/公顷 | 2026-9 |
| 2015/2016 | 0.342 | 吨/公顷 | 2026-9 |
| 2014/2015 | 0.416 | 吨/公顷 | 2026-9 |
| 2013/2014 | 0.415 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.336 | 吨/公顷 | 2026-9 |
| 2011/2012 | 0.297 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.54 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.439 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.613 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.442 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.455 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.472 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.289 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.481 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.819 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.216 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.615 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.724 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.505 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.316 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.739 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.49 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.488 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.515 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.491 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.307 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.532 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.492 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.438 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.374 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.253 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.477 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.511 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.272 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.167 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.451 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.542 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.437 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.451 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.415 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.411 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.52 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.557 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.559 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.23 | 吨/公顷 | 2026-9 |