| 年度 | 实际值 |
|---|---|
| 1992 | 36976 |
| 1993 | |
| 1994 | |
| 1995 | 36206 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 38253 |
| 2000 | 36770 |
| 2001 | 34686 |
| 2002 | 35604 |
| 2003 | 35002 |
| 2004 | 34845 |
| 2005 | 34743 |
| 2006 | 34792 |
| 2007 | 35483 |
| 2008 | 30313 |
| 2009 | 31504 |
| 2010 | 31878 |
| 2011 | 31968 |
| 2012 | 33336 |
| 2013 | 34871 |
| 2014 | 35729 |
| 2015 | 35984 |
| 2016 | 36125 |