| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026 | 38 | 千吨 | 2026-9 |
| 2025 | 39 | 千吨 | 2026-9 |
| 2024 | 36 | 千吨 | 2026-9 |
| 2023 | 31 | 千吨 | 2026-9 |
| 2022 | 29 | 千吨 | 2026-9 |
| 2021 | 38 | 千吨 | 2026-9 |
| 2020 | 41 | 千吨 | 2026-9 |
| 2019 | 38 | 千吨 | 2026-9 |
| 2018 | 50 | 千吨 | 2026-9 |
| 2017 | 49 | 千吨 | 2026-9 |
| 2016 | 56 | 千吨 | 2026-9 |
| 2015 | 58 | 千吨 | 2026-9 |
| 2014 | 58 | 千吨 | 2026-9 |
| 2013 | 56 | 千吨 | 2026-9 |
| 2012 | 57 | 千吨 | 2026-9 |
| 2011 | 47 | 千吨 | 2026-9 |
| 2010 | 57 | 千吨 | 2026-9 |
| 2009 | 61 | 千吨 | 2026-9 |
| 2008 | 67 | 千吨 | 2026-9 |
| 2007 | 92 | 千吨 | 2026-9 |
| 2006 | 82 | 千吨 | 2026-9 |
| 2005 | 80 | 千吨 | 2026-9 |
| 2004 | 80 | 千吨 | 2026-9 |
| 2003 | 74 | 千吨 | 2026-9 |
| 2002 | 65 | 千吨 | 2026-9 |
| 2001 | 93 | 千吨 | 2026-9 |
| 2000 | 63 | 千吨 | 2026-9 |
| 1999 | 34 | 千吨 | 2026-9 |
| 1998 | 34 | 千吨 | 2026-9 |
| 1997 | 26 | 千吨 | 2026-9 |
| 1996 | 30 | 千吨 | 2026-9 |
| 1995 | 35 | 千吨 | 2026-9 |
| 1994 | 40 | 千吨 | 2026-9 |
| 1993 | 53 | 千吨 | 2026-9 |
| 1992 | 59 | 千吨 | 2026-9 |
| 1991 | 70 | 千吨 | 2026-9 |
| 1990 | 77 | 千吨 | 2026-9 |
| 1989 | 76 | 千吨 | 2026-9 |
| 1988 | 89 | 千吨 | 2026-9 |