| 年度 | 实际值 |
|---|---|
| 1992 | 266000 |
| 1993 | |
| 1994 | |
| 1995 | 311000 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 297000 |
| 2000 | 299000 |
| 2001 | 310000 |
| 2002 | 321000 |
| 2003 | 320000 |
| 2004 | 310000 |
| 2005 | 310000 |
| 2006 | 310000 |
| 2007 | 310000 |
| 2008 | 320000 |
| 2009 | 310000 |
| 2010 | 310000 |
| 2011 | 310000 |
| 2012 | 310000 |
| 2013 | 310000 |
| 2014 | 280000 |
| 2015 | 260000 |
| 2016 | 310000 |
| 2017 | 280000 |