| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2016 | 886 | 千吨 | 2026-9 |
| 2015 | 863 | 千吨 | 2026-9 |
| 2014 | 762 | 千吨 | 2026-9 |
| 2013 | 838 | 千吨 | 2026-9 |
| 2012 | 750 | 千吨 | 2026-9 |
| 2011 | 745 | 千吨 | 2026-9 |
| 2010 | 652 | 千吨 | 2026-9 |
| 2009 | 557 | 千吨 | 2026-9 |
| 2008 | 446 | 千吨 | 2026-9 |
| 2007 | 442 | 千吨 | 2026-9 |
| 2006 | 419 | 千吨 | 2026-9 |
| 2005 | 452 | 千吨 | 2026-9 |
| 2004 | 366 | 千吨 | 2026-9 |
| 2003 | 362 | 千吨 | 2026-9 |
| 2002 | 286 | 千吨 | 2026-9 |
| 2001 | 290 | 千吨 | 2026-9 |
| 2000 | 277 | 千吨 | 2026-9 |
| 1999 | 238 | 千吨 | 2026-9 |
| 1998 | 181 | 千吨 | 2026-9 |
| 1997 | 297 | 千吨 | 2026-9 |
| 1996 | 287 | 千吨 | 2026-9 |
| 1995 | 285 | 千吨 | 2026-9 |
| 1994 | 141 | 千吨 | 2026-9 |
| 1993 | 170 | 千吨 | 2026-9 |
| 1992 | 175 | 千吨 | 2026-9 |
| 1991 | 204 | 千吨 | 2026-9 |
| 1990 | 209 | 千吨 | 2026-9 |
| 1989 | 194 | 千吨 | 2026-9 |
| 1988 | 193 | 千吨 | 2026-9 |
| 1987 | 182 | 千吨 | 2026-9 |
| 1986 | 182 | 千吨 | 2026-9 |
| 1985 | 181 | 千吨 | 2026-9 |
| 1984 | 196 | 千吨 | 2026-9 |