| 年度 | 实际值 |
|---|---|
| 1993 | 5658 |
| 1994 | |
| 1995 | 5780 |
| 1996 | 5969 |
| 1997 | 4784 |
| 1998 | 4724 |
| 1999 | 4849 |
| 2000 | 5124 |
| 2001 | 5293 |
| 2002 | 4868 |
| 2003 | 4756 |
| 2004 | 4605 |
| 2005 | 4669 |
| 2006 | 4409 |
| 2007 | 5537 |
| 2008 | 5495 |
| 2009 | |
| 2010 | 4399 |
| 2011 | 5953 |
| 2012 | .43 |
| 2013 | 4731 |
| 2014 | 5125 |
| 2015 | 5475 |
| 2016 | 7475 |
| 2017 | 7797 |
| 2018 | 7988 |