| 年度 | 数值 | 单位 | 发布日期 |
| 2026/2027 | 20112 | 千吨 | 2026-9 |
| 2025/2026 | 19762 | 千吨 | 2026-9 |
| 2024/2025 | 17012 | 千吨 | 2026-9 |
| 2023/2024 | 21612 | 千吨 | 2026-9 |
| 2022/2023 | 22262 | 千吨 | 2026-9 |
| 2021/2022 | 18312 | 千吨 | 2026-9 |
| 2020/2021 | 21416 | 千吨 | 2026-9 |
| 2019/2020 | 20613 | 千吨 | 2026-9 |
| 2018/2019 | 17501 | 千吨 | 2026-9 |
| 2017/2018 | 21134 | 千吨 | 2026-9 |
| 2016/2017 | 18490 | 千吨 | 2026-9 |
| 2015/2016 | 18670 | 千吨 | 2026-9 |
| 2014/2015 | 20958 | 千吨 | 2026-9 |
| 2013/2014 | 16289 | 千吨 | 2026-9 |
| 2012/2013 | 15111 | 千吨 | 2026-9 |
| 2011/2012 | 18773 | 千吨 | 2026-9 |
| 2010/2011 | 11142 | 千吨 | 2026-9 |
| 2009/2010 | 21727 | 千吨 | 2026-9 |
| 2008/2009 | 24377 | 千吨 | 2026-9 |
| 2007/2008 | 17260 | 千吨 | 2026-9 |
| 2006/2007 | 19368 | 千吨 | 2026-9 |
| 2005/2006 | 18159 | 千吨 | 2026-9 |
| 2004/2005 | 19768 | 千吨 | 2026-9 |
| 2003/2004 | 23234 | 千吨 | 2026-9 |
| 2002/2003 | 23424 | 千吨 | 2026-9 |
| 2001/2002 | 21278 | 千吨 | 2026-9 |
| 2000/2001 | 14817 | 千吨 | 2026-9 |
| 1999/2000 | 11817 | 千吨 | 2026-9 |
| 1998/1999 | 13391 | 千吨 | 2026-9 |
| 1997/1998 | 21311 | 千吨 | 2026-9 |
| 1996/1997 | 16906 | 千吨 | 2026-9 |
| 1995/1996 | 18866 | 千吨 | 2026-9 |
| 1994/1995 | 28518 | 千吨 | 2026-9 |
| 1993/1994 | 27963 | 千吨 | 2026-9 |
| 1992/1993 | 28437 | 千吨 | 2026-9 |
| 1991/1992 | 23848 | 千吨 | 2026-9 |
| 1990/1991 | 31465 | 千吨 | 2026-9 |
| 1989/1990 | 25788 | 千吨 | 2026-9 |
| 1988/1989 | 24520 | 千吨 | 2026-9 |
| 1987/1988 | 29041 | 千吨 | 2026-9 |