| 年度 | 实际值 |
|---|---|
| 1993 | 5653 |
| 1994 | 5938 |
| 1995 | 6031 |
| 1996 | 6498 |
| 1997 | 6266 |
| 1998 | 6181 |
| 1999 | 6320 |
| 2000 | 6636 |
| 2001 | 6647 |
| 2002 | 5405 |
| 2003 | 4372 |
| 2004 | 4495 |
| 2005 | 5595 |
| 2006 | 6168 |
| 2007 | 6085 |
| 2008 | 4779 |
| 2009 | |
| 2010 | 8945 |
| 2011 | 9438 |
| 2012 | 9830 |
| 2013 | 9982 |
| 2014 | 10333 |
| 2015 | 10614 |
| 2016 | 10807 |
| 2017 | 11355 |
| 2018 | 11820 |