| 年度 | 数值 | 单位 | 发布日期 |
| 2025/2026 | 14.585 | 千吨 | 2026-9 |
| 2024/2025 | 10.534 | 千吨 | 2026-9 |
| 2023/2024 | 12.965 | 千吨 | 2026-9 |
| 2022/2023 | 12.965 | 千吨 | 2026-9 |
| 2021/2022 | 12.965 | 千吨 | 2026-9 |
| 2020/2021 | 13.775 | 千吨 | 2026-9 |
| 2019/2020 | 11.344 | 千吨 | 2026-9 |
| 2018/2019 | 11.344 | 千吨 | 2026-9 |
| 2017/2018 | 12.155 | 千吨 | 2026-9 |
| 2016/2017 | 7.293 | 千吨 | 2026-9 |
| 2015/2016 | 5.672 | 千吨 | 2026-9 |
| 2014/2015 | 7.293 | 千吨 | 2026-9 |
| 2013/2014 | 11.344 | 千吨 | 2026-9 |
| 2012/2013 | 12.965 | 千吨 | 2026-9 |
| 2011/2012 | 17.016 | 千吨 | 2026-9 |
| 2010/2011 | 11.344 | 千吨 | 2026-9 |
| 2009/2010 | 7.293 | 千吨 | 2026-9 |
| 2008/2009 | 12.965 | 千吨 | 2026-9 |
| 2007/2008 | 17.827 | 千吨 | 2026-9 |
| 2006/2007 | 22.688 | 千吨 | 2026-9 |
| 2005/2006 | 23.499 | 千吨 | 2026-9 |
| 2004/2005 | 21.068 | 千吨 | 2026-9 |
| 2003/2004 | 17.016 | 千吨 | 2026-9 |
| 2002/2003 | 16.206 | 千吨 | 2026-9 |
| 2001/2002 | 24.309 | 千吨 | 2026-9 |
| 2000/2001 | 15.396 | 千吨 | 2026-9 |
| 1999/2000 | 17.016 | 千吨 | 2026-9 |
| 1998/1999 | 16.206 | 千吨 | 2026-9 |
| 1997/1998 | 12.965 | 千吨 | 2026-9 |
| 1996/1997 | 14.585 | 千吨 | 2026-9 |
| 1995/1996 | 14.585 | 千吨 | 2026-9 |
| 1994/1995 | 12.155 | 千吨 | 2026-9 |
| 1993/1994 | 7.293 | 千吨 | 2026-9 |
| 1992/1993 | 12.155 | 千吨 | 2026-9 |
| 1991/1992 | 21.068 | 千吨 | 2026-9 |
| 1990/1991 | 34.033 | 千吨 | 2026-9 |
| 1989/1990 | 30.791 | 千吨 | 2026-9 |
| 1988/1989 | 34.843 | 千吨 | 2026-9 |
| 1987/1988 | 30.791 | 千吨 | 2026-9 |