| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 3.02 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.301 | 吨/公顷 | 2026-9 |
| 2024/2025 | 2.621 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.917 | 吨/公顷 | 2026-9 |
| 2022/2023 | 2.537 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.27 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.57 | 吨/公顷 | 2026-9 |
| 2019/2020 | 2.5 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.495 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.692 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.207 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.481 | 吨/公顷 | 2026-9 |
| 2014/2015 | 1.978 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.435 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.051 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.442 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.125 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.365 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.182 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.013 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.035 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.151 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.151 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.954 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.965 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.824 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.069 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.908 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.105 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.882 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.894 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.813 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.709 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.864 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.761 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.875 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.829 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.437 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.829 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.494 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.609 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.477 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.547 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.529 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.605 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.553 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.512 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.512 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.547 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.588 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.512 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.353 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.012 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.988 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.173 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.305 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.976 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.037 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.125 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.031 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.941 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.89 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.005 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.872 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.821 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.909 | 吨/公顷 | 2026-9 |