| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.632 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.316 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.596 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.592 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.242 | 吨/公顷 | 2026-9 |
| 2021/2022 | 1.247 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1.486 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.457 | 吨/公顷 | 2026-9 |
| 2018/2019 | 1.244 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.34 | 吨/公顷 | 2026-9 |
| 2016/2017 | 1.621 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.634 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.505 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.495 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.659 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.278 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.904 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.442 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.444 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.2 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.2 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.2 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.933 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.364 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.667 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.667 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.6 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.6 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.464 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.5 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.245 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.289 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.027 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.058 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.286 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.095 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.328 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.042 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.387 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.209 | 吨/公顷 | 2026-9 |