| 年度 | 数值 | 单位 | 发布时间 |
| 2026/2027 | 4.625 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.625 | 吨/公顷 | 2026-9 |
| 2024/2025 | 4.625 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.531 | 吨/公顷 | 2026-9 |
| 2022/2023 | 4.742 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.323 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.546 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.229 | 吨/公顷 | 2026-9 |
| 2018/2019 | 5.162 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.871 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.645 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.188 | 吨/公顷 | 2026-9 |
| 2014/2015 | 4.567 | 吨/公顷 | 2026-9 |
| 2013/2014 | 4.226 | 吨/公顷 | 2026-9 |
| 2012/2013 | 4 | 吨/公顷 | 2026-9 |
| 2011/2012 | 4.345 | 吨/公顷 | 2026-9 |
| 2010/2011 | 4.448 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.813 | 吨/公顷 | 2026-9 |
| 2008/2009 | 4.097 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.807 | 吨/公顷 | 2026-9 |
| 2006/2007 | 4.594 | 吨/公顷 | 2026-9 |
| 2005/2006 | 4.485 | 吨/公顷 | 2026-9 |
| 2004/2005 | 4.294 | 吨/公顷 | 2026-9 |
| 2003/2004 | 4.029 | 吨/公顷 | 2026-9 |
| 2002/2003 | 4.118 | 吨/公顷 | 2026-9 |
| 2001/2002 | 3.441 | 吨/公顷 | 2026-9 |
| 2000/2001 | 3.378 | 吨/公顷 | 2026-9 |
| 1999/2000 | 4.348 | 吨/公顷 | 2026-9 |
| 1998/1999 | 3.525 | 吨/公顷 | 2026-9 |
| 1997/1998 | 3.738 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.381 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.861 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.093 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.244 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.955 | 吨/公顷 | 2026-9 |