| 年度 | 数值 | 单位 | 发布日期 |
| 2025/2026 | 30000 | 吨 | 2026-9 |
| 2024/2025 | 33700 | 吨 | 2026-9 |
| 2023/2024 | 30600 | 吨 | 2026-9 |
| 2022/2023 | 34600 | 吨 | 2026-9 |
| 2021/2022 | 47400 | 吨 | 2026-9 |
| 2020/2021 | 52800 | 吨 | 2026-9 |
| 2019/2020 | 58000 | 吨 | 2026-9 |
| 2018/2019 | 72700 | 吨 | 2026-9 |
| 2017/2018 | 48900 | 吨 | 2026-9 |
| 2016/2017 | 49800 | 吨 | 2026-9 |
| 2015/2016 | 48000 | 吨 | 2026-9 |
| 2014/2015 | 65500 | 吨 | 2026-9 |
| 2013/2014 | 60400 | 吨 | 2026-9 |
| 2012/2013 | 55000 | 吨 | 2026-9 |
| 2011/2012 | 53300 | 吨 | 2026-9 |
| 2010/2011 | 44600 | 吨 | 2026-9 |
| 2009/2010 | 32700 | 吨 | 2026-9 |
| 2008/2009 | 29100 | 吨 | 2026-9 |
| 2007/2008 | 33500 | 吨 | 2026-9 |
| 2006/2007 | 25600 | 吨 | 2026-9 |
| 2005/2006 | 16600 | 吨 | 2026-9 |
| 2004/2005 | 12800 | 吨 | 2026-9 |
| 2003/2004 | 10700 | 吨 | 2026-9 |
| 2002/2003 | 10100 | 吨 | 2026-9 |
| 2001/2002 | 6700 | 吨 | 2026-9 |