| 年度 | 实际值 |
|---|---|
| 1993 | 4522 |
| 1994 | |
| 1995 | 5280 |
| 1996 | 5568 |
| 1997 | 5827 |
| 1998 | 6284 |
| 1999 | 5591 |
| 2000 | 5500 |
| 2001 | 5592 |
| 2002 | 4190 |
| 2003 | 4512 |
| 2004 | 4382 |
| 2005 | 4819 |
| 2006 | 4887 |
| 2007 | 4153 |
| 2008 | 4442 |
| 2009 | |
| 2010 | 5087 |
| 2011 | 5557 |
| 2012 | 3695 |
| 2013 | 5192 |
| 2014 | 5634 |
| 2015 | 3903 |
| 2016 | 4096 |
| 2017 | 5694 |
| 2018 | 6094 |
| 2019 | 6510 |