| 年度 | 数值 | 单位 | 发布日期 |
| 2016 | 12344 | 千吨 | 2026-9 |
| 2015 | 13267 | 千吨 | 2026-9 |
| 2014 | 12830 | 千吨 | 2026-9 |
| 2013 | 13174 | 千吨 | 2026-9 |
| 2012 | 13543 | 千吨 | 2026-9 |
| 2011 | 13016 | 千吨 | 2026-9 |
| 2010 | 12457 | 千吨 | 2026-9 |
| 2009 | 12210 | 千吨 | 2026-9 |
| 2008 | 11954 | 千吨 | 2026-9 |
| 2007 | 11415 | 千吨 | 2026-9 |
| 2006 | 10371 | 千吨 | 2026-9 |
| 2005 | 10087 | 千吨 | 2026-9 |
| 2004 | 9931 | 千吨 | 2026-9 |
| 2003 | 9963 | 千吨 | 2026-9 |
| 2002 | 9556 | 千吨 | 2026-9 |
| 2001 | 9237 | 千吨 | 2026-9 |
| 2000 | 9393 | 千吨 | 2026-9 |
| 1999 | 8730 | 千吨 | 2026-9 |
| 1998 | 8194 | 千吨 | 2026-9 |
| 1997 | 7442 | 千吨 | 2026-9 |
| 1996 | 8988 | 千吨 | 2026-9 |
| 1995 | 7703 | 千吨 | 2026-9 |
| 1994 | 6100 | 千吨 | 2026-9 |
| 1993 | 4455 | 千吨 | 2026-9 |
| 1992 | 3493 | 千吨 | 2026-9 |
| 1991 | 3059 | 千吨 | 2026-9 |
| 1990 | 2406 | 千吨 | 2026-9 |
| 1989 | 2067 | 千吨 | 2026-9 |
| 1988 | 1996 | 千吨 | 2026-9 |
| 1987 | 1528 | 千吨 | 2026-9 |