| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 4.97 | 吨/公顷 | 2026-9 |
| 2025/2026 | 5.03 | 吨/公顷 | 2026-9 |
| 2024/2025 | 5.048 | 吨/公顷 | 2026-9 |
| 2023/2024 | 5.014 | 吨/公顷 | 2026-9 |
| 2022/2023 | 4.987 | 吨/公顷 | 2026-9 |
| 2021/2022 | 4.924 | 吨/公顷 | 2026-9 |
| 2020/2021 | 4.834 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.793 | 吨/公顷 | 2026-9 |
| 2018/2019 | 4.718 | 吨/公顷 | 2026-9 |
| 2017/2018 | 4.646 | 吨/公顷 | 2026-9 |
| 2016/2017 | 4.551 | 吨/公顷 | 2026-9 |
| 2015/2016 | 4.484 | 吨/公顷 | 2026-9 |
| 2014/2015 | 4.412 | 吨/公顷 | 2026-9 |
| 2013/2014 | 4.437 | 吨/公顷 | 2026-9 |
| 2012/2013 | 4.299 | 吨/公顷 | 2026-9 |
| 2011/2012 | 4.314 | 吨/公顷 | 2026-9 |
| 2010/2011 | 4.108 | 吨/公顷 | 2026-9 |
| 2009/2010 | 4.015 | 吨/公顷 | 2026-9 |
| 2008/2009 | 4.011 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.926 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.732 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.596 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.462 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.435 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.077 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.962 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.748 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.533 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.48 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.49 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.499 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.113 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.138 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.775 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.565 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.5 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.553 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.646 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.595 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.382 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.421 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.313 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.367 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.235 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.153 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.098 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.077 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.28 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.21 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.01 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.087 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.087 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.25 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.275 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.2 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.097 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.069 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.069 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.103 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.172 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.207 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.222 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.243 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.056 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.032 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.964 | 吨/公顷 | 2026-9 |