| 年度 | 实际值 |
|---|---|
| 1993 | 5100 |
| 1994 | 5492 |
| 1995 | 5654 |
| 1996 | 4229 |
| 1997 | 4268 |
| 1998 | 3598 |
| 1999 | 3513 |
| 2000 | 3712 |
| 2001 | 3656 |
| 2002 | 5056 |
| 2003 | 5324 |
| 2004 | 4153 |
| 2005 | 3822 |
| 2006 | 4700 |
| 2007 | 12238 |
| 2008 | 5386 |
| 2009 | |
| 2010 | 6487 |
| 2011 | 6098 |
| 2012 | 6398 |
| 2013 | 6450 |
| 2014 | 6740 |
| 2015 | 6838 |
| 2016 | 7113 |
| 2017 | 7162 |