| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 3.371 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.336 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.25 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.185 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.333 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.36 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.566 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.512 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.487 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.376 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.243 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.107 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.465 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.405 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.381 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.249 | 吨/公顷 | 2026-9 |
| 2010/2011 | 3.253 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.386 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.381 | 吨/公顷 | 2026-9 |
| 2007/2008 | 3.222 | 吨/公顷 | 2026-9 |
| 2006/2007 | 3.17 | 吨/公顷 | 2026-9 |
| 2005/2006 | 3.185 | 吨/公顷 | 2026-9 |
| 2004/2005 | 3.094 | 吨/公顷 | 2026-9 |
| 2003/2004 | 3.041 | 吨/公顷 | 2026-9 |
| 2002/2003 | 3.004 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.782 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.808 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.859 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.42 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.418 | 吨/公顷 | 2026-9 |
| 1996/1997 | 3.02 | 吨/公顷 | 2026-9 |
| 1995/1996 | 3.396 | 吨/公顷 | 2026-9 |
| 1994/1995 | 3.571 | 吨/公顷 | 2026-9 |
| 1993/1994 | 3.732 | 吨/公顷 | 2026-9 |
| 1992/1993 | 3.529 | 吨/公顷 | 2026-9 |
| 1991/1992 | 3.143 | 吨/公顷 | 2026-9 |
| 1990/1991 | 3.433 | 吨/公顷 | 2026-9 |
| 1989/1990 | 3.343 | 吨/公顷 | 2026-9 |
| 1988/1989 | 2.881 | 吨/公顷 | 2026-9 |
| 1987/1988 | 2.561 | 吨/公顷 | 2026-9 |
| 1986/1987 | 3.081 | 吨/公顷 | 2026-9 |
| 1985/1986 | 3.423 | 吨/公顷 | 2026-9 |
| 1984/1985 | 3.395 | 吨/公顷 | 2026-9 |
| 1983/1984 | 3.885 | 吨/公顷 | 2026-9 |
| 1982/1983 | 3.855 | 吨/公顷 | 2026-9 |
| 1981/1982 | 3.683 | 吨/公顷 | 2026-9 |
| 1980/1981 | 3.27 | 吨/公顷 | 2026-9 |
| 1979/1980 | 3.441 | 吨/公顷 | 2026-9 |
| 1978/1979 | 3.205 | 吨/公顷 | 2026-9 |
| 1977/1978 | 2.956 | 吨/公顷 | 2026-9 |
| 1976/1977 | 3.55 | 吨/公顷 | 2026-9 |
| 1975/1976 | 3.339 | 吨/公顷 | 2026-9 |
| 1974/1975 | 2.894 | 吨/公顷 | 2026-9 |
| 1973/1974 | 3.191 | 吨/公顷 | 2026-9 |
| 1972/1973 | 2.9 | 吨/公顷 | 2026-9 |
| 1971/1972 | 2.69 | 吨/公顷 | 2026-9 |
| 1970/1971 | 2.611 | 吨/公顷 | 2026-9 |
| 1969/1970 | 2.17 | 吨/公顷 | 2026-9 |
| 1968/1969 | 2.1 | 吨/公顷 | 2026-9 |
| 1967/1968 | 2.089 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0 | 吨/公顷 | 2026-9 |