| 年度 | 实际值 |
|---|---|
| 1992 | 41830 |
| 1993 | |
| 1994 | |
| 1995 | 41070 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 40820 |
| 2000 | 27770 |
| 2001 | 36653 |
| 2002 | 29640 |
| 2003 | 30547 |
| 2004 | 28100 |
| 2005 | 30260 |
| 2006 | 27780 |
| 2007 | 31660 |
| 2008 | 30411 |
| 2009 | 28610 |
| 2010 | 22363 |
| 2011 | 21249 |
| 2012 | 23255 |
| 2013 | 26942 |
| 2014 | 21835 |
| 2015 | 41004 |
| 2016 | 41549 |