| 年度 | 实际值 |
|---|---|
| 1993 | 50000 |
| 1994 | 50000 |
| 1995 | |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | |
| 2000 | 43293 |
| 2001 | 40555 |
| 2002 | 36659 |
| 2003 | 32338 |
| 2004 | 32002 |
| 2005 | 24467 |
| 2006 | 22012 |
| 2007 | 22693 |
| 2008 | 24041 |
| 2009 | 24633 |
| 2010 | 26405 |
| 2011 | 27322 |
| 2012 | 28360 |
| 2013 | 28517 |
| 2014 | 28664 |
| 2015 | 28439 |
| 2016 | 28962 |
| 2017 | 27863 |