| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026/2027 | 0.34 | 吨/公顷 | 2026-9 |
| 2025/2026 | 0.224 | 吨/公顷 | 2026-9 |
| 2024/2025 | 0.2 | 吨/公顷 | 2026-9 |
| 2023/2024 | 0.284 | 吨/公顷 | 2026-9 |
| 2022/2023 | 0.288 | 吨/公顷 | 2026-9 |
| 2021/2022 | 0.236 | 吨/公顷 | 2026-9 |
| 2020/2021 | 0.376 | 吨/公顷 | 2026-9 |
| 2019/2020 | 0.5 | 吨/公顷 | 2026-9 |
| 2018/2019 | 0.564 | 吨/公顷 | 2026-9 |
| 2017/2018 | 0.394 | 吨/公顷 | 2026-9 |
| 2016/2017 | 0.456 | 吨/公顷 | 2026-9 |
| 2015/2016 | 0.514 | 吨/公顷 | 2026-9 |
| 2014/2015 | 0.482 | 吨/公顷 | 2026-9 |
| 2013/2014 | 0.305 | 吨/公顷 | 2026-9 |
| 2012/2013 | 0.484 | 吨/公顷 | 2026-9 |
| 2011/2012 | 0.379 | 吨/公顷 | 2026-9 |
| 2010/2011 | 0.32 | 吨/公顷 | 2026-9 |
| 2009/2010 | 0.221 | 吨/公顷 | 2026-9 |
| 2008/2009 | 0.232 | 吨/公顷 | 2026-9 |
| 2007/2008 | 0.348 | 吨/公顷 | 2026-9 |
| 2006/2007 | 0.34 | 吨/公顷 | 2026-9 |
| 2005/2006 | 0.299 | 吨/公顷 | 2026-9 |
| 2004/2005 | 0.33 | 吨/公顷 | 2026-9 |
| 2003/2004 | 0.315 | 吨/公顷 | 2026-9 |
| 2002/2003 | 0.383 | 吨/公顷 | 2026-9 |
| 2001/2002 | 0.424 | 吨/公顷 | 2026-9 |
| 2000/2001 | 0.354 | 吨/公顷 | 2026-9 |
| 1999/2000 | 0.333 | 吨/公顷 | 2026-9 |
| 1998/1999 | 0.313 | 吨/公顷 | 2026-9 |
| 1997/1998 | 0.33 | 吨/公顷 | 2026-9 |
| 1996/1997 | 0.333 | 吨/公顷 | 2026-9 |
| 1995/1996 | 0.35 | 吨/公顷 | 2026-9 |
| 1994/1995 | 0.417 | 吨/公顷 | 2026-9 |
| 1993/1994 | 0.286 | 吨/公顷 | 2026-9 |
| 1992/1993 | 0.307 | 吨/公顷 | 2026-9 |
| 1991/1992 | 0.5 | 吨/公顷 | 2026-9 |
| 1990/1991 | 0.521 | 吨/公顷 | 2026-9 |
| 1989/1990 | 0.51 | 吨/公顷 | 2026-9 |
| 1988/1989 | 0.49 | 吨/公顷 | 2026-9 |
| 1987/1988 | 0.469 | 吨/公顷 | 2026-9 |
| 1986/1987 | 0.483 | 吨/公顷 | 2026-9 |
| 1985/1986 | 0.5 | 吨/公顷 | 2026-9 |
| 1984/1985 | 0.425 | 吨/公顷 | 2026-9 |
| 1983/1984 | 0.3 | 吨/公顷 | 2026-9 |
| 1982/1983 | 0.773 | 吨/公顷 | 2026-9 |
| 1981/1982 | 0.501 | 吨/公顷 | 2026-9 |
| 1980/1981 | 0.517 | 吨/公顷 | 2026-9 |
| 1979/1980 | 0.467 | 吨/公顷 | 2026-9 |
| 1978/1979 | 0.433 | 吨/公顷 | 2026-9 |
| 1977/1978 | 0.533 | 吨/公顷 | 2026-9 |
| 1976/1977 | 0.433 | 吨/公顷 | 2026-9 |
| 1975/1976 | 0.4 | 吨/公顷 | 2026-9 |
| 1974/1975 | 0.353 | 吨/公顷 | 2026-9 |
| 1973/1974 | 0.602 | 吨/公顷 | 2026-9 |
| 1972/1973 | 0.083 | 吨/公顷 | 2026-9 |
| 1971/1972 | 0.1 | 吨/公顷 | 2026-9 |
| 1970/1971 | 0.147 | 吨/公顷 | 2026-9 |
| 1969/1970 | 0.18 | 吨/公顷 | 2026-9 |
| 1968/1969 | 0.186 | 吨/公顷 | 2026-9 |
| 1967/1968 | 0.177 | 吨/公顷 | 2026-9 |
| 1966/1967 | 0.177 | 吨/公顷 | 2026-9 |
| 1965/1966 | 0.163 | 吨/公顷 | 2026-9 |
| 1964/1965 | 0.159 | 吨/公顷 | 2026-9 |
| 1963/1964 | 0.203 | 吨/公顷 | 2026-9 |
| 1962/1963 | 0.167 | 吨/公顷 | 2026-9 |
| 1961/1962 | 0.132 | 吨/公顷 | 2026-9 |