| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 2026 | 16 | 千吨 | 2026-9 |
| 2025 | 18 | 千吨 | 2026-9 |
| 2024 | 17 | 千吨 | 2026-9 |
| 2023 | 10 | 千吨 | 2026-9 |
| 2022 | 18 | 千吨 | 2026-9 |
| 2021 | 19 | 千吨 | 2026-9 |
| 2020 | 30 | 千吨 | 2026-9 |
| 2019 | 30 | 千吨 | 2026-9 |
| 2018 | 25 | 千吨 | 2026-9 |
| 2017 | 24 | 千吨 | 2026-9 |
| 2016 | 22 | 千吨 | 2026-9 |
| 2015 | 22 | 千吨 | 2026-9 |
| 2014 | 19 | 千吨 | 2026-9 |
| 2013 | 20 | 千吨 | 2026-9 |
| 2012 | 22 | 千吨 | 2026-9 |
| 2011 | 19 | 千吨 | 2026-9 |
| 2010 | 5 | 千吨 | 2026-9 |
| 2009 | 9 | 千吨 | 2026-9 |
| 2008 | 9 | 千吨 | 2026-9 |
| 2007 | 10 | 千吨 | 2026-9 |
| 2006 | 10 | 千吨 | 2026-9 |
| 2005 | 9 | 千吨 | 2026-9 |
| 2004 | 17 | 千吨 | 2026-9 |
| 2003 | 17 | 千吨 | 2026-9 |
| 2002 | 30 | 千吨 | 2026-9 |
| 2001 | 50 | 千吨 | 2026-9 |
| 2000 | 52 | 千吨 | 2026-9 |
| 1999 | 37 | 千吨 | 2026-9 |
| 1998 | 37 | 千吨 | 2026-9 |
| 1997 | 43 | 千吨 | 2026-9 |
| 1996 | 37 | 千吨 | 2026-9 |