| 年度 | 实际值 |
|---|---|
| 1992 | 46400 |
| 1993 | |
| 1994 | |
| 1995 | 43240 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 41754 |
| 2000 | 38360 |
| 2001 | 35760 |
| 2002 | 33000 |
| 2003 | 34170 |
| 2004 | 34600 |
| 2005 | 34960 |
| 2006 | 33390 |
| 2007 | 35280 |
| 2008 | 35950 |
| 2009 | 34410 |
| 2010 | 33240 |
| 2011 | 31770 |
| 2012 | 32380 |
| 2013 | 32540 |
| 2014 | 24570 |
| 2015 | 25650 |
| 2016 | 26350 |