| 年度 | 数值 | 单位 | 发布日期 |
|---|---|---|---|
| 2016 | 179 | 千吨 | 2026-9 |
| 2015 | 146 | 千吨 | 2026-9 |
| 2014 | 134 | 千吨 | 2026-9 |
| 2013 | 136 | 千吨 | 2026-9 |
| 2012 | 123 | 千吨 | 2026-9 |
| 2011 | 103 | 千吨 | 2026-9 |
| 2010 | 102 | 千吨 | 2026-9 |
| 2009 | 80 | 千吨 | 2026-9 |
| 2008 | 65 | 千吨 | 2026-9 |
| 2007 | 65 | 千吨 | 2026-9 |
| 2006 | 65 | 千吨 | 2026-9 |
| 2005 | 46 | 千吨 | 2026-9 |
| 2004 | 41 | 千吨 | 2026-9 |
| 2003 | 38 | 千吨 | 2026-9 |
| 2002 | 36 | 千吨 | 2026-9 |
| 2001 | 34 | 千吨 | 2026-9 |
| 2000 | 33 | 千吨 | 2026-9 |
| 1999 | 29 | 千吨 | 2026-9 |
| 1998 | 24 | 千吨 | 2026-9 |
| 1997 | 24 | 千吨 | 2026-9 |
| 1994 | 75 | 千吨 | 2026-9 |
| 1993 | 75 | 千吨 | 2026-9 |
| 1992 | 86 | 千吨 | 2026-9 |
| 1991 | 111 | 千吨 | 2026-9 |
| 1990 | 111 | 千吨 | 2026-9 |
| 1989 | 114 | 千吨 | 2026-9 |