| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2016 | 690 | 千吨 | 2026-9 |
| 2015 | 622 | 千吨 | 2026-9 |
| 2014 | 546 | 千吨 | 2026-9 |
| 2013 | 504 | 千吨 | 2026-9 |
| 2012 | 538 | 千吨 | 2026-9 |
| 2011 | 467 | 千吨 | 2026-9 |
| 2010 | 432 | 千吨 | 2026-9 |
| 2009 | 379 | 千吨 | 2026-9 |
| 2008 | 383 | 千吨 | 2026-9 |
| 2007 | 296 | 千吨 | 2026-9 |
| 2006 | 261 | 千吨 | 2026-9 |
| 2005 | 240 | 千吨 | 2026-9 |
| 2004 | 201 | 千吨 | 2026-9 |
| 2003 | 499 | 千吨 | 2026-9 |
| 2002 | 434 | 千吨 | 2026-9 |
| 2001 | 399 | 千吨 | 2026-9 |
| 2000 | 310 | 千吨 | 2026-9 |
| 1999 | 265 | 千吨 | 2026-9 |
| 1998 | 274 | 千吨 | 2026-9 |
| 1997 | 195 | 千吨 | 2026-9 |
| 1996 | 171 | 千吨 | 2026-9 |
| 1995 | 177 | 千吨 | 2026-9 |
| 1994 | 168 | 千吨 | 2026-9 |
| 1993 | 157 | 千吨 | 2026-9 |
| 1992 | 175 | 千吨 | 2026-9 |
| 1991 | 164 | 千吨 | 2026-9 |
| 1990 | 139 | 千吨 | 2026-9 |
| 1989 | 108 | 千吨 | 2026-9 |
| 1988 | 96 | 千吨 | 2026-9 |
| 1987 | 82 | 千吨 | 2026-9 |
| 1986 | 65 | 千吨 | 2026-9 |
| 1985 | 38 | 千吨 | 2026-9 |
| 1984 | 34 | 千吨 | 2026-9 |
| 1983 | 23 | 千吨 | 2026-9 |
| 1982 | 33 | 千吨 | 2026-9 |
| 1981 | 32 | 千吨 | 2026-9 |
| 1980 | 23 | 千吨 | 2026-9 |
| 1979 | 17 | 千吨 | 2026-9 |
| 1978 | 11 | 千吨 | 2026-9 |
| 1977 | 5 | 千吨 | 2026-9 |
| 1976 | 3 | 千吨 | 2026-9 |
| 1975 | 0 | 千吨 | 2026-9 |