| 年度 | 实际值 |
|---|---|
| 1992 | 38078 |
| 1993 | |
| 1994 | |
| 1995 | 20720 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 48026 |
| 2000 | 50050 |
| 2001 | 50437 |
| 2002 | 49022 |
| 2003 | 42894 |
| 2004 | 42000 |
| 2005 | 43470 |
| 2006 | 43612 |
| 2007 | 33744 |
| 2008 | 41627 |
| 2009 | 45849 |
| 2010 | 46887 |
| 2011 | 39615 |
| 2012 | 41839 |
| 2013 | 42253 |
| 2014 | 35792 |
| 2015 | 40946 |
| 2016 | 41450 |