| 年度 | 实际值 |
|---|---|
| 1992 | 10922 |
| 1993 | 11322 |
| 1994 | 9927 |
| 1995 | 10149 |
| 1996 | 11063 |
| 1997 | 6641 |
| 1998 | 6838 |
| 1999 | 6768 |
| 2000 | 7108 |
| 2001 | 7373 |
| 2002 | 7855 |
| 2003 | 7847 |
| 2004 | 8668 |
| 2005 | 8770 |
| 2006 | 9808 |
| 2007 | 11481.61 |
| 2008 | 14499.09 |
| 2009 | |
| 2010 | 20599.47 |
| 2011 | 24369 |
| 2012 | 26600 |
| 2013 | 29307 |
| 2014 | 22737 |