| 序号 | 时间 (年) |
数据 (吨) |
|---|---|---|
| 1 | 2011 | |
| 2 | 2010 | |
| 3 | 2009 | |
| 4 | 2008 | |
| 5 | 2007 | |
| 6 | 2006 | |
| 7 | 2005 | 21684000.00 |
| 8 | 2004 | 18914000.00 |
| 9 | 2003 | 17920000.00 |
| 10 | 2002 | 15619806.00 |
| 11 | 2001 | 15660000.00 |
| 12 | 2000 | 16153200.00 |
| 13 | 1999 | 14600949.00 |
| 14 | 1998 | 16000000.00 |
| 15 | 1997 | 13626293.00 |
| 16 | 1996 | 13635742.00 |
| 17 | 1995 | 14050210.00 |
| 18 | 1994 | 13414155.00 |
| 19 | 1993 | 12924899.00 |
| 20 | 1992 | 13230000.00 |
