| 年度 | 实际值 |
|---|---|
| 1993 | 1438 |
| 1994 | 1463 |
| 1995 | 1671 |
| 1996 | 1677 |
| 1997 | |
| 1998 | |
| 1999 | |
| 2000 | 6816 |
| 2001 | 6899 |
| 2002 | 6391 |
| 2003 | 6692 |
| 2004 | 6256 |
| 2005 | 6888 |
| 2006 | 6547 |
| 2007 | 7033 |
| 2008 | 7246 |
| 2009 | |
| 2010 | 10265 |
| 2011 | 10763 |
| 2012 | 11000 |
| 2013 | 11864 |
| 2014 | 13672 |
| 2015 | 12265 |
| 2016 | 13904 |
| 2017 | 12896 |
| 2018 | 13200 |