| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 1.667 | 吨/公顷 | 2026-9 |
| 2025/2026 | 2.667 | 吨/公顷 | 2026-9 |
| 2024/2025 | 1.872 | 吨/公顷 | 2026-9 |
| 2023/2024 | 2.032 | 吨/公顷 | 2026-9 |
| 2022/2023 | 1.669 | 吨/公顷 | 2026-9 |
| 2021/2022 | 2.071 | 吨/公顷 | 2026-9 |
| 2020/2021 | 2.125 | 吨/公顷 | 2026-9 |
| 2019/2020 | 1.863 | 吨/公顷 | 2026-9 |
| 2018/2019 | 2.403 | 吨/公顷 | 2026-9 |
| 2017/2018 | 2.257 | 吨/公顷 | 2026-9 |
| 2016/2017 | 2.446 | 吨/公顷 | 2026-9 |
| 2015/2016 | 2.304 | 吨/公顷 | 2026-9 |
| 2014/2015 | 2.143 | 吨/公顷 | 2026-9 |
| 2013/2014 | 2.07 | 吨/公顷 | 2026-9 |
| 2012/2013 | 1.908 | 吨/公顷 | 2026-9 |
| 2011/2012 | 1.568 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.316 | 吨/公顷 | 2026-9 |
| 2009/2010 | 1.309 | 吨/公顷 | 2026-9 |
| 2008/2009 | 1.373 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.107 | 吨/公顷 | 2026-9 |
| 2006/2007 | 1.6 | 吨/公顷 | 2026-9 |
| 2005/2006 | 1.522 | 吨/公顷 | 2026-9 |
| 2004/2005 | 1.842 | 吨/公顷 | 2026-9 |
| 2003/2004 | 1.502 | 吨/公顷 | 2026-9 |
| 2002/2003 | 1.671 | 吨/公顷 | 2026-9 |
| 2001/2002 | 1.777 | 吨/公顷 | 2026-9 |
| 2000/2001 | 1.917 | 吨/公顷 | 2026-9 |
| 1999/2000 | 1.647 | 吨/公顷 | 2026-9 |
| 1998/1999 | 1.596 | 吨/公顷 | 2026-9 |
| 1997/1998 | 1.766 | 吨/公顷 | 2026-9 |
| 1996/1997 | 1.26 | 吨/公顷 | 2026-9 |
| 1995/1996 | 1.215 | 吨/公顷 | 2026-9 |
| 1994/1995 | 1.378 | 吨/公顷 | 2026-9 |
| 1993/1994 | 1.438 | 吨/公顷 | 2026-9 |
| 1992/1993 | 1.613 | 吨/公顷 | 2026-9 |
| 1991/1992 | 1.338 | 吨/公顷 | 2026-9 |
| 1990/1991 | 1.541 | 吨/公顷 | 2026-9 |
| 1989/1990 | 1.442 | 吨/公顷 | 2026-9 |
| 1988/1989 | 1.264 | 吨/公顷 | 2026-9 |
| 1987/1988 | 1.3 | 吨/公顷 | 2026-9 |
| 1986/1987 | 1 | 吨/公顷 | 2026-9 |
| 1985/1986 | 1 | 吨/公顷 | 2026-9 |
| 1984/1985 | 1.589 | 吨/公顷 | 2026-9 |
| 1983/1984 | 1.432 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.561 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.138 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.237 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.273 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.352 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.326 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.384 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.281 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.16 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.42 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.419 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.331 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.2 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.3 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.106 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.337 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.311 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.14 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.412 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.307 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.182 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.173 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.098 | 吨/公顷 | 2026-9 |