| 年度 | 实际值 |
|---|---|
| 1992 | 233667 |
| 1993 | |
| 1994 | |
| 1995 | 250280 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 284812 |
| 2000 | 280399 |
| 2001 | 270981 |
| 2002 | 265735 |
| 2003 | 260617 |
| 2004 | 274235 |
| 2005 | 277430 |
| 2006 | 283825 |
| 2007 | 285293 |
| 2008 | 263282 |
| 2009 | 290077 |
| 2010 | 291776 |
| 2011 | 294003 |
| 2012 | 299102 |
| 2013 | 291208 |
| 2014 | 296327 |
| 2015 | 300562 |
| 2016 | 294124 |