| 年度 | 实际值 |
|---|---|
| 1992 | 282068 |
| 1993 | |
| 1994 | |
| 1995 | 294699 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 272816 |
| 2000 | 216195 |
| 2001 | 240590 |
| 2002 | 245330 |
| 2003 | 238963 |
| 2004 | 288271 |
| 2005 | 281804 |
| 2006 | 308285 |
| 2007 | 319882 |
| 2008 | 334310 |
| 2009 | 413818 |
| 2010 | 473601 |
| 2011 | 505929 |
| 2012 | 512101 |
| 2013 | 510417 |
| 2014 | 509070 |
| 2015 | 521295 |
| 2016 | 500547 |