| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 1.667 | 吨/公顷 | 2026-9 |
| 2025/2026 | 1.795 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.657 | 吨/公顷 | 2026-9 |
| 2023/2024 | 1.406 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.696 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.039 | 吨/公顷 | 2026-9 |
| 2020/2021 | 1 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.941 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.105 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.944 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2 | 吨/公顷 | 2026-9 |
| 2015/2016 | 1.914 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.875 | 吨/公顷 | 2026-9 |
| 2013/2014 | 1.623 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.455 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.759 | 吨/公顷 | 2026-9 |
| 2010/2011 | 1.917 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.417 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.564 | 吨/公顷 | 2026-9 |
| 2007/2008 | 1.539 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.222 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.5 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.714 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.714 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.767 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.75 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.714 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.667 | 吨/公顷 | 2026-9 |
| 1975/1976 | 2 | 吨/公顷 | 2026-9 |
| 1974/1975 | 2 | 吨/公顷 | 2026-9 |
| 1973/1974 | 2 | 吨/公顷 | 2026-9 |
| 1972/1973 | 2 | 吨/公顷 | 2026-9 |
| 1971/1972 | 2 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.8 | 吨/公顷 | 2026-9 |
| 1969/1970 | 2 | 吨/公顷 | 2026-9 |
| 1968/1969 | 2 | 吨/公顷 | 2026-9 |
| 1967/1968 | 2 | 吨/公顷 | 2026-9 |
| 1966/1967 | 2 | 吨/公顷 | 2026-9 |
| 1965/1966 | 2 | 吨/公顷 | 2026-9 |
| 1964/1965 | 2 | 吨/公顷 | 2026-9 |