| 年份 | 单位：万吨 |
| 2011 | 425968.00 |
| 2010 | 378949.00 |
| 2009 | 318996.00 |
| 2008 | 294510.00 |
| 2007 | 281199.00 |
| 2006 | 248703.00 |
| 2005 | 219648.00 |
| 2004 | 187394.00 |
| 2003 | 158070.00 |
| 2002 | 141832.00 |
| 2001 | 132675.00 |
| 2000 | 122391.00 |
| 1999 | 114608.00 |
| 1998 | 109555.00 |
| 1997 | 113406.00 |
| 1996 | 127430.00 |
| 1995 | 113194.00 |
| 1994 | 107091.00 |
| 1993 | 97938.00 |
| 1992 | 92490.00 |
| 1991 | 83370.00 |
| 1990 | 80094.00 |
| 1989 | 87493.00 |
| 1985 | 63322.00 |
| 1980 | 42676.00 |
| 1978 | 43292.00 |
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