| 年度 | 数值 | 单位 | 发布日期 |
| 2026 | 195 | 千吨 | 2026-9 |
| 2025 | 210 | 千吨 | 2026-9 |
| 2024 | 229 | 千吨 | 2026-9 |
| 2023 | 344 | 千吨 | 2026-9 |
| 2022 | 335 | 千吨 | 2026-9 |
| 2021 | 426 | 千吨 | 2026-9 |
| 2020 | 336 | 千吨 | 2026-9 |
| 2019 | 344 | 千吨 | 2026-9 |
| 2018 | 280 | 千吨 | 2026-9 |
| 2017 | 247 | 千吨 | 2026-9 |
| 2016 | 184 | 千吨 | 2026-9 |
| 2015 | 200 | 千吨 | 2026-9 |
| 2014 | 253 | 千吨 | 2026-9 |
| 2013 | 235 | 千吨 | 2026-9 |
| 2012 | 168 | 千吨 | 2026-9 |
| 2011 | 130 | 千吨 | 2026-9 |
| 2010 | 89 | 千吨 | 2026-9 |
| 2009 | 70 | 千吨 | 2026-9 |
| 2008 | 55 | 千吨 | 2026-9 |
| 2007 | 40 | 千吨 | 2026-9 |
| 2006 | 62 | 千吨 | 2026-9 |
| 2005 | 55 | 千吨 | 2026-9 |
| 2004 | 61 | 千吨 | 2026-9 |
| 2003 | 51 | 千吨 | 2026-9 |
| 2002 | 35 | 千吨 | 2026-9 |
| 2001 | 18 | 千吨 | 2026-9 |
| 2000 | 22 | 千吨 | 2026-9 |
| 1999 | 20 | 千吨 | 2026-9 |
| 1998 | 14 | 千吨 | 2026-9 |
| 1997 | 9 | 千吨 | 2026-9 |
| 1996 | 13 | 千吨 | 2026-9 |
| 1995 | 10 | 千吨 | 2026-9 |
| 1994 | 20 | 千吨 | 2026-9 |
| 1993 | 6 | 千吨 | 2026-9 |
| 1992 | 6 | 千吨 | 2026-9 |
| 1991 | 16 | 千吨 | 2026-9 |
| 1990 | 15 | 千吨 | 2026-9 |