| 年度 | 实际值 |
|---|---|
| 1992 | 327698 |
| 1993 | |
| 1994 | |
| 1995 | 314878 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 322807 |
| 2000 | 247478 |
| 2001 | 188778 |
| 2002 | 164659 |
| 2003 | 127682 |
| 2004 | 147829 |
| 2005 | 149760 |
| 2006 | 28662 |
| 2007 | 165605 |
| 2008 | 169331 |
| 2009 | 172925 |
| 2010 | 169027 |
| 2011 | 170323 |
| 2012 | 170924 |
| 2013 | 170597 |
| 2014 | 163133 |
| 2015 | 162823 |
| 2016 | 161010 |