| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2016 | 540 | 千吨 | 2026-9 |
| 2015 | 514 | 千吨 | 2026-9 |
| 2014 | 524 | 千吨 | 2026-9 |
| 2013 | 491 | 千吨 | 2026-9 |
| 2012 | 525 | 千吨 | 2026-9 |
| 2011 | 571 | 千吨 | 2026-9 |
| 2010 | 539 | 千吨 | 2026-9 |
| 2009 | 524 | 千吨 | 2026-9 |
| 2008 | 502 | 千吨 | 2026-9 |
| 2007 | 528 | 千吨 | 2026-9 |
| 2006 | 543 | 千吨 | 2026-9 |
| 2005 | 533 | 千吨 | 2026-9 |
| 2004 | 579 | 千吨 | 2026-9 |
| 2003 | 597 | 千吨 | 2026-9 |
| 2002 | 609 | 千吨 | 2026-9 |
| 2001 | 606 | 千吨 | 2026-9 |
| 2000 | 631 | 千吨 | 2026-9 |
| 1999 | 625 | 千吨 | 2026-9 |
| 1998 | 609 | 千吨 | 2026-9 |
| 1997 | 613 | 千吨 | 2026-9 |
| 1996 | 545 | 千吨 | 2026-9 |
| 1995 | 504 | 千吨 | 2026-9 |
| 1994 | 480 | 千吨 | 2026-9 |
| 1993 | 413 | 千吨 | 2026-9 |
| 1992 | 397 | 千吨 | 2026-9 |
| 1991 | 375 | 千吨 | 2026-9 |
| 1990 | 362 | 千吨 | 2026-9 |
| 1989 | 351 | 千吨 | 2026-9 |
| 1988 | 316 | 千吨 | 2026-9 |
| 1987 | 286 | 千吨 | 2026-9 |
| 1986 | 254 | 千吨 | 2026-9 |
| 1985 | 254 | 千吨 | 2026-9 |
| 1984 | 254 | 千吨 | 2026-9 |
| 1983 | 257 | 千吨 | 2026-9 |
| 1982 | 205 | 千吨 | 2026-9 |
| 1981 | 193 | 千吨 | 2026-9 |
| 1980 | 174 | 千吨 | 2026-9 |
| 1979 | 155 | 千吨 | 2026-9 |
| 1978 | 151 | 千吨 | 2026-9 |
| 1977 | 131 | 千吨 | 2026-9 |
| 1976 | 52 | 千吨 | 2026-9 |