| 年份 | 单位：份 |
| 2010 | 1055.00 |
| 2009 | 1625.00 |
| 2008 | 461.00 |
| 2007 | 506.00 |
| 2006 | 467.00 |
| 2005 | 464.00 |
| 2004 | 421.00 |
| 2003 | 597.00 |
| 2002 | 622.00 |
| 2001 | 911.00 |
| 2000 | 754.00 |
| 1999 | 523.00 |
| 1998 | 427.00 |
| 1997 | 188.00 |
| 1996 | 163.00 |
| 1995 | 205.00 |
| 1994 | 134.00 |
| 1993 | 110.00 |
| 1992 | 59.00 |
| 1991 | 67.00 |
| 1990 | 45.00 |
| 1985 | 75.00 |
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