| 年度 | 实际值 |
|---|---|
| 1992 | 253723 |
| 1993 | |
| 1994 | |
| 1995 | 279684 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 275455 |
| 2000 | 246441 |
| 2001 | 224280 |
| 2002 | 217943 |
| 2003 | 201925 |
| 2004 | 255881 |
| 2005 | 256015 |
| 2006 | 262749 |
| 2007 | 273048 |
| 2008 | 285561 |
| 2009 | 289714 |
| 2010 | 284353 |
| 2011 | 284731 |
| 2012 | 286090 |
| 2013 | 335227 |
| 2014 | 288285 |
| 2015 | 280150 |
| 2016 | 275000 |