| 年度 | 实际值 |
|---|---|
| 1992 | 17000 |
| 1993 | |
| 1994 | |
| 1995 | 21000 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 26000 |
| 2000 | 15000 |
| 2001 | 20000 |
| 2002 | 22400 |
| 2003 | 26003 |
| 2004 | 28000 |
| 2005 | 35000 |
| 2006 | 27000 |
| 2007 | 30000 |
| 2008 | 22000 |
| 2009 | 0 |
| 2010 | 31100 |
| 2011 | 31000 |
| 2012 | 41000 |
| 2013 | 4.1 |
| 2014 | 41000 |
| 2015 | 40000 |
| 2016 | 50000 |
| 2017 | 40000 |