| 年度 | 实际值 |
|---|---|
| 1992 | 373825 |
| 1993 | |
| 1994 | |
| 1995 | 348234 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 309474 |
| 2000 | 287512 |
| 2001 | 259871 |
| 2002 | 267840 |
| 2003 | 263074 |
| 2004 | 273384 |
| 2005 | 261924 |
| 2006 | 41606 |
| 2007 | 285480 |
| 2008 | 303482 |
| 2009 | 274982 |
| 2010 | 283587 |
| 2011 | 278882 |
| 2012 | 289130 |
| 2013 | 290434 |
| 2014 | 250722 |
| 2015 | 234690 |
| 2016 | 223509 |