| 年度 | 实际值 |
|---|---|
| 1993 | 4980 |
| 1994 | 4659 |
| 1995 | 4967 |
| 1996 | 4362 |
| 1997 | 4274 |
| 1998 | 4519 |
| 1999 | 4818 |
| 2000 | 5047 |
| 2001 | 5019 |
| 2002 | 4884 |
| 2003 | 4900 |
| 2004 | 5125 |
| 2005 | 4822 |
| 2006 | 5107 |
| 2007 | 6410 |
| 2008 | 6742 |
| 2009 | |
| 2010 | 7587 |
| 2011 | 7937 |
| 2012 | 8645 |
| 2013 | 8651 |
| 2014 | 8895 |
| 2015 | 9434 |
| 2016 | 9591 |
| 2017 | 11877 |
| 2018 | 13556 |