| 年度 | 实际值 |
|---|---|
| 1993 | 2885 |
| 1994 | 4970 |
| 1995 | 6962 |
| 1996 | 7198 |
| 1997 | 7259 |
| 1998 | 7535 |
| 1999 | 5534 |
| 2000 | 5805 |
| 2001 | 5582 |
| 2002 | 18856 |
| 2003 | 5947 |
| 2004 | 5875 |
| 2005 | 5880 |
| 2006 | 6029 |
| 2007 | 5728 |
| 2008 | 5978 |
| 2009 | |
| 2010 | 7856 |
| 2011 | 8211 |
| 2012 | 7880 |
| 2013 | 5931 |
| 2014 | 8989 |
| 2015 | 9197 |
| 2016 | 9562 |
| 2017 | 9548 |
| 2018 | 9546 |