| 年度 | 实际值 |
|---|---|
| 1992 | 11623 |
| 1993 | |
| 1994 | |
| 1995 | 12816 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 12841 |
| 2000 | 13090 |
| 2001 | 13294 |
| 2002 | 12977 |
| 2003 | 12424 |
| 2004 | 11969 |
| 2005 | 13407 |
| 2006 | 14340 |
| 2007 | 14294 |
| 2008 | 12537 |
| 2009 | 12445 |
| 2010 | 12563 |
| 2011 | 12805 |
| 2012 | 13265 |
| 2013 | 13548 |
| 2014 | 13367 |
| 2015 | 13174 |
| 2016 | 13085 |