| 年度 | 数值 | 单位 | 发布日期 |
| 2016 | 1096 | 千吨 | 2026-9 |
| 2015 | 1080 | 千吨 | 2026-9 |
| 2014 | 1050 | 千吨 | 2026-9 |
| 2013 | 1039 | 千吨 | 2026-9 |
| 2012 | 932 | 千吨 | 2026-9 |
| 2011 | 864 | 千吨 | 2026-9 |
| 2010 | 839 | 千吨 | 2026-9 |
| 2009 | 820 | 千吨 | 2026-9 |
| 2008 | 790 | 千吨 | 2026-9 |
| 2007 | 821 | 千吨 | 2026-9 |
| 2006 | 811 | 千吨 | 2026-9 |
| 2005 | 787 | 千吨 | 2026-9 |
| 2004 | 652 | 千吨 | 2026-9 |
| 2003 | 751 | 千吨 | 2026-9 |
| 2002 | 841 | 千吨 | 2026-9 |
| 2001 | 831 | 千吨 | 2026-9 |
| 2000 | 760 | 千吨 | 2026-9 |
| 1999 | 715 | 千吨 | 2026-9 |
| 1998 | 656 | 千吨 | 2026-9 |
| 1997 | 705 | 千吨 | 2026-9 |
| 1996 | 669 | 千吨 | 2026-9 |
| 1995 | 603 | 千吨 | 2026-9 |
| 1994 | 532 | 千吨 | 2026-9 |
| 1993 | 493 | 千吨 | 2026-9 |
| 1992 | 505 | 千吨 | 2026-9 |
| 1991 | 466 | 千吨 | 2026-9 |
| 1990 | 436 | 千吨 | 2026-9 |
| 1989 | 430 | 千吨 | 2026-9 |
| 1988 | 402 | 千吨 | 2026-9 |
| 1987 | 382 | 千吨 | 2026-9 |
| 1986 | 366 | 千吨 | 2026-9 |
| 1985 | 355 | 千吨 | 2026-9 |
| 1984 | 322 | 千吨 | 2026-9 |
| 1983 | 352 | 千吨 | 2026-9 |
| 1982 | 302 | 千吨 | 2026-9 |
| 1981 | 243 | 千吨 | 2026-9 |
| 1980 | 250 | 千吨 | 2026-9 |
| 1979 | 162 | 千吨 | 2026-9 |
| 1978 | 133 | 千吨 | 2026-9 |
| 1977 | 104 | 千吨 | 2026-9 |
| 1976 | 66 | 千吨 | 2026-9 |
| 1975 | 61 | 千吨 | 2026-9 |