| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 2.091 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.262 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.009 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.01 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.976 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.463 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.177 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.999 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.086 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.713 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.045 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.88 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.804 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.953 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.562 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.656 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.917 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.034 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.64 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.389 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.529 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.591 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.814 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.587 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.34 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.539 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.495 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.465 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.622 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.387 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.553 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.429 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.515 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.553 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.469 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.424 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.742 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.576 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.389 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.294 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0 | 吨/公顷 | 2026-9 |