| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 4.2 | 吨/公顷 | 2026-9 |
| 2025/2026 | 4.2 | 吨/公顷 | 2026-9 |
| 2024/2025 | 4.036 | 吨/公顷 | 2026-9 |
| 2023/2024 | 4.242 | 吨/公顷 | 2026-9 |
| 2022/2023 | 4 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.05 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.469 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.182 | 吨/公顷 | 2026-9 |
| 2017/2018 | 1.714 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.5 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.875 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.875 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.07 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.118 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.023 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.023 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.085 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.333 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.333 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.2 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.2 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.875 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.556 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.556 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.889 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.722 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.722 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.824 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.609 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.261 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.462 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.839 | 吨/公顷 | 2026-9 |
| 1991/1992 | 2.096 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.104 | 吨/公顷 | 2026-9 |
| 1989/1990 | 2 | 吨/公顷 | 2026-9 |
| 1988/1989 | 2.002 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.81 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.769 | 吨/公顷 | 2026-9 |
| 1985/1986 | 2.308 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.84 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.448 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.643 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.452 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.421 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.588 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.589 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.53 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.551 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.291 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.199 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.034 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.11 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.213 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.208 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.045 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.056 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.028 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.193 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.128 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.072 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.007 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.118 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.08 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.103 | 吨/公顷 | 2026-9 |