| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3.177 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.231 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.143 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.15 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.429 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.279 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.897 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.658 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.965 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.717 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.592 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.568 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.287 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.269 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.075 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.663 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.069 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.29 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.668 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.622 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.731 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.224 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.58 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.015 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.073 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.517 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.475 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.624 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.937 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.754 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.997 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.977 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.37 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.317 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.998 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.428 | 吨/公顷 | 2026-9 |
| 1989/1990 | 2.395 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.769 | 吨/公顷 | 2026-9 |
| 1987/1988 | 2.206 | 吨/公顷 | 2026-9 |