| 年度 | 数值 | 单位 | 发布时间 |
|---|
| 2026/2027 | 3.844 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.687 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.554 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.861 | 吨/公顷 | 2026-9 |
| 2022/2023 | 4.074 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.773 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.828 | 吨/公顷 | 2026-9 |
| 2019/2020 | 4.026 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.844 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.765 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.672 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.604 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.479 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.245 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.131 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.085 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.244 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.311 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.22 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.031 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.937 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.867 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.835 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.743 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.622 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.508 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.663 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.264 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.41 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.298 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.286 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.119 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.487 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.472 | 吨/公顷 | 2026-9 |
| 1991/1992 | 2.1 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.136 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.681 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.683 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.65 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.667 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.694 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.571 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.431 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.167 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.534 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.284 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.211 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.275 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.225 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.22 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.177 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.01 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.139 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.08 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.138 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.113 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.897 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.118 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.067 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.093 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.067 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.042 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.999 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.852 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.87 | 吨/公顷 | 2026-9 |
| 1960/1961 | 0.995 | 吨/公顷 | 2026-9 |