| 年度 | 实际值 |
|---|---|
| 1992 | 3288 |
| 1993 | 3621 |
| 1994 | 4719 |
| 1995 | 5224 |
| 1996 | 5847 |
| 1997 | 6633 |
| 1998 | 6485 |
| 1999 | 6973 |
| 2000 | 7567 |
| 2001 | 8178 |
| 2002 | 10046 |
| 2003 | 10997 |
| 2004 | 12662 |
| 2005 | 16199 |
| 2006 | 16645 |
| 2007 | 19276.42 |
| 2008 | 22674.56 |
| 2009 | |
| 2010 | 19466.49 |
| 2011 | 20866 |
| 2012 | 21941 |
| 2013 | 22926 |
| 2014 | 20566 |