| 年度 | 实际值 |
|---|---|
| 1992 | 4303 |
| 1993 | 5089 |
| 1994 | 7038 |
| 1995 | 14660 |
| 1996 | 14060 |
| 1997 | 9574 |
| 1998 | 9969 |
| 1999 | 10180 |
| 2000 | 12495 |
| 2001 | 11580 |
| 2002 | 12444 |
| 2003 | 14303 |
| 2004 | 15718 |
| 2005 | 17603 |
| 2006 | 19967 |
| 2007 | 23137 |
| 2008 | 24418 |
| 2009 | |
| 2010 | 19545.13 |
| 2011 | 23952 |
| 2012 | 25199 |
| 2013 | 27650 |
| 2014 | 29098 |