| 年度 | 实际值 |
|---|---|
| 1992 | 67870 |
| 1993 | |
| 1994 | |
| 1995 | 60550 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 62585 |
| 2000 | 53570 |
| 2001 | 39420 |
| 2002 | 31150 |
| 2003 | 24250 |
| 2004 | 36690 |
| 2005 | 28840 |
| 2006 | 29250 |
| 2007 | 29020 |
| 2008 | 30420 |
| 2009 | 29500 |
| 2010 | 27840 |
| 2011 | 25710 |
| 2012 | 25640 |
| 2013 | 27410 |
| 2014 | 23260 |
| 2015 | 21880 |
| 2016 | 21940 |