| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 4 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.93 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.598 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.086 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.421 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.207 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.19 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.233 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.987 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.376 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.114 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.379 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.477 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.563 | 吨/公顷 | 2026-9 |
| 2012/2013 | 2.832 | 吨/公顷 | 2026-9 |
| 2011/2012 | 2.51 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.443 | 吨/公顷 | 2026-9 |
| 2009/2010 | 2.444 | 吨/公顷 | 2026-9 |
| 2008/2009 | 2.415 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.191 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.335 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.427 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.535 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.225 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.74 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.854 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.261 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.29 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.975 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.907 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.914 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.128 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.981 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.931 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.873 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.757 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.775 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.104 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.591 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1.922 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1.612 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.762 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.932 | 吨/公顷 | 2026-9 |
| 1982/1983 | 2.037 | 吨/公顷 | 2026-9 |
| 1981/1982 | 2.083 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.445 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.591 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.903 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.624 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.764 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.634 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.408 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.418 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.339 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.439 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.424 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.122 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.208 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.098 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.486 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.403 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.114 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.232 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.229 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.731 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.145 | 吨/公顷 | 2026-9 |