| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2016 | 701 | 千吨 | 2026-9 |
| 2015 | 695 | 千吨 | 2026-9 |
| 2014 | 665 | 千吨 | 2026-9 |
| 2013 | 602 | 千吨 | 2026-9 |
| 2012 | 648 | 千吨 | 2026-9 |
| 2011 | 679 | 千吨 | 2026-9 |
| 2010 | 650 | 千吨 | 2026-9 |
| 2009 | 598 | 千吨 | 2026-9 |
| 2008 | 571 | 千吨 | 2026-9 |
| 2007 | 584 | 千吨 | 2026-9 |
| 2006 | 639 | 千吨 | 2026-9 |
| 2005 | 608 | 千吨 | 2026-9 |
| 2004 | 628 | 千吨 | 2026-9 |
| 2003 | 630 | 千吨 | 2026-9 |
| 2002 | 629 | 千吨 | 2026-9 |
| 2001 | 615 | 千吨 | 2026-9 |
| 2000 | 643 | 千吨 | 2026-9 |
| 1999 | 639 | 千吨 | 2026-9 |
| 1998 | 617 | 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 |