| 年份 | 单位：亿元 |
| 2010 | 399.31 |
| 2009 | 352.01 |
| 2008 | 492.09 |
| 2007 | 530.37 |
| 2006 | 467.11 |
| 2005 | 402.58 |
| 2004 | 350.69 |
| 2003 | 379.37 |
| 2002 | 440.00 |
| 2001 | 347.00 |
| 2000 | 247.63 |
| 1999 | 230.45 |
| 1998 | 164.15 |
| 1997 | 145.08 |
| 1996 | 947.66 |
| 1995 | 317.57 |
| 1994 | 283.32 |
| 1993 | 245.90 |
| 1992 | 1707.73 |
| 1991 | 1381.10 |
| 1990 | 1073.28 |
| 1989 | 1072.28 |
| 1988 | 907.15 |
| 1987 | 828.03 |
| 1986 | 716.63 |
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