| 季度 | 单位：万吨 |
| 2011-12 | 购买后可见 » |
| 2011-06 | 购买后可见 » |
| 2010-12 | 购买后可见 » |
| 2010-06 | 购买后可见 » |
| 2009-12 | 购买后可见 » |
| 2008-12 | 购买后可见 » |
| 2008-06 | 购买后可见 » |
| 2007-12 | 购买后可见 » |
| 2007-06 | 购买后可见 » |
| 2006-12 | 购买后可见 » |
| 2006-06 | 购买后可见 » |
| 2005-06 | 购买后可见 » |
| 2004-12 | 购买后可见 » |
| 2004-06 | 购买后可见 » |
| 2003-12 | 购买后可见 » |
| 2003-06 | 购买后可见 » |
| 2002-12 | 购买后可见 » |
| 2002-06 | 购买后可见 » |
| 2001-12 | 购买后可见 » |
| 2001-06 | 购买后可见 » |
| 2000-12 | 116.30 |
| 2000-06 | 54.38 |
| 1999-12 | 114.11 |
| 1999-06 | 56.41 |
| 1998-12 | 108.00 |
| 1998-06 | 46.35 |
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