| 年度 | 实际值 |
|---|---|
| 1992 | 50017 |
| 1993 | |
| 1994 | |
| 1995 | 53453 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 50141 |
| 2000 | 50190 |
| 2001 | 43511 |
| 2002 | 39385 |
| 2003 | 37705 |
| 2004 | 40229 |
| 2005 | 42283 |
| 2006 | 42793 |
| 2007 | 41887 |
| 2008 | 32891 |
| 2009 | 34563 |
| 2010 | 34267 |
| 2011 | 34672 |
| 2012 | 35267 |
| 2013 | 35453 |
| 2014 | 35635 |
| 2015 | 33800 |
| 2016 | 34130 |