| 年度 | 实际值 |
|---|---|
| 1992 | 9797 |
| 1993 | 10658 |
| 1994 | 17792 |
| 1995 | 19717 |
| 1996 | 21152 |
| 1997 | 21722 |
| 1998 | 22278 |
| 1999 | 22215 |
| 2000 | 22740 |
| 2001 | 23224 |
| 2002 | 23753 |
| 2003 | 24938 |
| 2004 | 27291 |
| 2005 | 28412 |
| 2006 | 29146.39 |
| 2007 | 30693.2 |
| 2008 | 32250.1 |
| 2009 | |
| 2010 | 34904.71 |
| 2011 | 28745 |
| 2012 | 29997 |
| 2013 | 26354 |
| 2014 | 16722 |