| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 3.819 | 吨/公顷 | 2026-9 |
| 2025/2026 | 3.834 | 吨/公顷 | 2026-9 |
| 2024/2025 | 3.597 | 吨/公顷 | 2026-9 |
| 2023/2024 | 3.562 | 吨/公顷 | 2026-9 |
| 2022/2023 | 3.597 | 吨/公顷 | 2026-9 |
| 2021/2022 | 3.523 | 吨/公顷 | 2026-9 |
| 2020/2021 | 3.509 | 吨/公顷 | 2026-9 |
| 2019/2020 | 3.53 | 吨/公顷 | 2026-9 |
| 2018/2019 | 3.4 | 吨/公顷 | 2026-9 |
| 2017/2018 | 3.489 | 吨/公顷 | 2026-9 |
| 2016/2017 | 3.403 | 吨/公顷 | 2026-9 |
| 2015/2016 | 3.308 | 吨/公顷 | 2026-9 |
| 2014/2015 | 3.307 | 吨/公顷 | 2026-9 |
| 2013/2014 | 3.267 | 吨/公顷 | 2026-9 |
| 2012/2013 | 3.058 | 吨/公顷 | 2026-9 |
| 2011/2012 | 3.163 | 吨/公顷 | 2026-9 |
| 2010/2011 | 2.999 | 吨/公顷 | 2026-9 |
| 2009/2010 | 3.045 | 吨/公顷 | 2026-9 |
| 2008/2009 | 3.062 | 吨/公顷 | 2026-9 |
| 2007/2008 | 2.819 | 吨/公顷 | 2026-9 |
| 2006/2007 | 2.809 | 吨/公顷 | 2026-9 |
| 2005/2006 | 2.847 | 吨/公顷 | 2026-9 |
| 2004/2005 | 2.906 | 吨/公顷 | 2026-9 |
| 2003/2004 | 2.684 | 吨/公顷 | 2026-9 |
| 2002/2003 | 2.68 | 吨/公顷 | 2026-9 |
| 2001/2002 | 2.726 | 吨/公顷 | 2026-9 |
| 2000/2001 | 2.708 | 吨/公顷 | 2026-9 |
| 1999/2000 | 2.762 | 吨/公顷 | 2026-9 |
| 1998/1999 | 2.694 | 吨/公顷 | 2026-9 |
| 1997/1998 | 2.695 | 吨/公顷 | 2026-9 |
| 1996/1997 | 2.56 | 吨/公顷 | 2026-9 |
| 1995/1996 | 2.48 | 吨/公顷 | 2026-9 |
| 1994/1995 | 2.452 | 吨/公顷 | 2026-9 |
| 1993/1994 | 2.527 | 吨/公顷 | 2026-9 |
| 1992/1993 | 2.532 | 吨/公顷 | 2026-9 |
| 1991/1992 | 2.439 | 吨/公顷 | 2026-9 |
| 1990/1991 | 2.549 | 吨/公顷 | 2026-9 |
| 1989/1990 | 2.356 | 吨/公顷 | 2026-9 |
| 1988/1989 | 2.274 | 吨/公顷 | 2026-9 |
| 1987/1988 | 2.266 | 吨/公顷 | 2026-9 |
| 1986/1987 | 2.3 | 吨/公顷 | 2026-9 |
| 1985/1986 | 2.153 | 吨/公顷 | 2026-9 |
| 1984/1985 | 2.197 | 吨/公顷 | 2026-9 |
| 1983/1984 | 2.107 | 吨/公顷 | 2026-9 |
| 1982/1983 | 1.983 | 吨/公顷 | 2026-9 |
| 1981/1982 | 1.863 | 吨/公顷 | 2026-9 |
| 1980/1981 | 1.84 | 吨/公顷 | 2026-9 |
| 1979/1980 | 1.833 | 吨/公顷 | 2026-9 |
| 1978/1979 | 1.918 | 吨/公顷 | 2026-9 |
| 1977/1978 | 1.663 | 吨/公顷 | 2026-9 |
| 1976/1977 | 1.778 | 吨/公顷 | 2026-9 |
| 1975/1976 | 1.565 | 吨/公顷 | 2026-9 |
| 1974/1975 | 1.614 | 吨/公顷 | 2026-9 |
| 1973/1974 | 1.687 | 吨/公顷 | 2026-9 |
| 1972/1973 | 1.6 | 吨/公顷 | 2026-9 |
| 1971/1972 | 1.618 | 吨/公顷 | 2026-9 |
| 1970/1971 | 1.481 | 吨/公顷 | 2026-9 |
| 1969/1970 | 1.396 | 吨/公顷 | 2026-9 |
| 1968/1969 | 1.446 | 吨/公顷 | 2026-9 |
| 1967/1968 | 1.332 | 吨/公顷 | 2026-9 |
| 1966/1967 | 1.406 | 吨/公顷 | 2026-9 |
| 1965/1966 | 1.205 | 吨/公顷 | 2026-9 |
| 1964/1965 | 1.227 | 吨/公顷 | 2026-9 |
| 1963/1964 | 1.117 | 吨/公顷 | 2026-9 |
| 1962/1963 | 1.193 | 吨/公顷 | 2026-9 |
| 1961/1962 | 1.082 | 吨/公顷 | 2026-9 |
| 1960/1961 | 1.155 | 吨/公顷 | 2026-9 |