| 年度 | 实际值 |
|---|---|
| 1993 | 3349 |
| 1994 | 3831 |
| 1995 | 3978 |
| 1996 | 4011 |
| 1997 | 4657 |
| 1998 | 4158 |
| 1999 | 4787 |
| 2000 | 4312 |
| 2001 | 5170 |
| 2002 | 3847 |
| 2003 | 3840 |
| 2004 | 3131 |
| 2005 | 3529 |
| 2006 | 3170 |
| 2007 | 2426 |
| 2008 | 4395 |
| 2009 | |
| 2010 | 4920 |
| 2011 | 4911 |
| 2012 | 5426 |
| 2013 | 5727 |
| 2014 | 5916 |
| 2015 | 4350 |
| 2016 | 4346 |
| 2017 | 5886 |
| 2018 | 6343 |