| 年度 | 实际值 |
|---|---|
| 1992 | 67000 |
| 1993 | |
| 1994 | |
| 1995 | 70000 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 77000 |
| 2000 | 75000 |
| 2001 | 80000 |
| 2002 | 78000 |
| 2003 | 80000 |
| 2004 | 80000 |
| 2005 | 80000 |
| 2006 | 80000 |
| 2007 | 80000 |
| 2008 | 80000 |
| 2009 | 80000 |
| 2010 | 80000 |
| 2011 | 80000 |
| 2012 | 90000 |
| 2013 | 90000 |
| 2014 | 90000 |
| 2015 | 90000 |
| 2016 | 90000 |
| 2017 | 90000 |