| 年度 | 实际值 |
|---|---|
| 1992 | 258215 |
| 1993 | |
| 1994 | |
| 1995 | 216320 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 271324 |
| 2000 | 270276 |
| 2001 | 273048 |
| 2002 | 270306 |
| 2003 | 272457 |
| 2004 | 287756 |
| 2005 | 268541 |
| 2006 | 299681 |
| 2007 | 269366 |
| 2008 | 297584 |
| 2009 | 293684 |
| 2010 | 305733 |
| 2011 | 276961 |
| 2012 | 268200 |
| 2013 | 253100 |
| 2014 | 250097 |
| 2015 | 262896 |
| 2016 | 255915 |