| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2016 | 755 | 千吨 | 2026-9 |
| 2015 | 741 | 千吨 | 2026-9 |
| 2014 | 650 | 千吨 | 2026-9 |
| 2013 | 583 | 千吨 | 2026-9 |
| 2012 | 566 | 千吨 | 2026-9 |
| 2011 | 509 | 千吨 | 2026-9 |
| 2010 | 425 | 千吨 | 2026-9 |
| 2009 | 476 | 千吨 | 2026-9 |
| 2008 | 427 | 千吨 | 2026-9 |
| 2007 | 490 | 千吨 | 2026-9 |
| 2006 | 548 | 千吨 | 2026-9 |
| 2005 | 537 | 千吨 | 2026-9 |
| 2004 | 470 | 千吨 | 2026-9 |
| 2003 | 472 | 千吨 | 2026-9 |
| 2002 | 445 | 千吨 | 2026-9 |
| 2001 | 424 | 千吨 | 2026-9 |
| 2000 | 483 | 千吨 | 2026-9 |
| 1999 | 370 | 千吨 | 2026-9 |
| 1998 | 435 | 千吨 | 2026-9 |
| 1997 | 423 | 千吨 | 2026-9 |
| 1996 | 328 | 千吨 | 2026-9 |
| 1995 | 298 | 千吨 | 2026-9 |
| 1994 | 276 | 千吨 | 2026-9 |
| 1993 | 275 | 千吨 | 2026-9 |
| 1992 | 265 | 千吨 | 2026-9 |
| 1991 | 283 | 千吨 | 2026-9 |
| 1990 | 263 | 千吨 | 2026-9 |
| 1989 | 240 | 千吨 | 2026-9 |
| 1988 | 248 | 千吨 | 2026-9 |
| 1987 | 236 | 千吨 | 2026-9 |
| 1986 | 196 | 千吨 | 2026-9 |
| 1985 | 196 | 千吨 | 2026-9 |
| 1984 | 186 | 千吨 | 2026-9 |