| 年度 | 数值 | 单位 | 发布日期 |
| 2026 | 265 | 千吨 | 2026-9 |
| 2025 | 263 | 千吨 | 2026-9 |
| 2024 | 265 | 千吨 | 2026-9 |
| 2023 | 246 | 千吨 | 2026-9 |
| 2022 | 262 | 千吨 | 2026-9 |
| 2021 | 201 | 千吨 | 2026-9 |
| 2020 | 200 | 千吨 | 2026-9 |
| 2019 | 191 | 千吨 | 2026-9 |
| 2018 | 199 | 千吨 | 2026-9 |
| 2017 | 193 | 千吨 | 2026-9 |
| 2016 | 198 | 千吨 | 2026-9 |
| 2015 | 210 | 千吨 | 2026-9 |
| 2014 | 183 | 千吨 | 2026-9 |
| 2013 | 180 | 千吨 | 2026-9 |
| 2012 | 161 | 千吨 | 2026-9 |
| 2011 | 154 | 千吨 | 2026-9 |
| 2010 | 141 | 千吨 | 2026-9 |
| 2009 | 143 | 千吨 | 2026-9 |
| 2008 | 130 | 千吨 | 2026-9 |
| 2007 | 146 | 千吨 | 2026-9 |
| 2006 | 151 | 千吨 | 2026-9 |
| 2005 | 158 | 千吨 | 2026-9 |
| 2004 | 159 | 千吨 | 2026-9 |
| 2003 | 135 | 千吨 | 2026-9 |
| 2002 | 133 | 千吨 | 2026-9 |
| 2001 | 127 | 千吨 | 2026-9 |
| 2000 | 129 | 千吨 | 2026-9 |
| 1999 | 103 | 千吨 | 2026-9 |
| 1998 | 90 | 千吨 | 2026-9 |
| 1997 | 106 | 千吨 | 2026-9 |
| 1996 | 95 | 千吨 | 2026-9 |
| 1983 | 10 | 千吨 | 2026-9 |
| 1982 | 10 | 千吨 | 2026-9 |
| 1981 | 7 | 千吨 | 2026-9 |