| 年度 | 实际值 |
|---|---|
| 1993 | 7339 |
| 1994 | 7761 |
| 1995 | 8076 |
| 1996 | 6445 |
| 1997 | 6217 |
| 1998 | 5521 |
| 1999 | 5527 |
| 2000 | 5811 |
| 2001 | 5743 |
| 2002 | 7159 |
| 2003 | 7421 |
| 2004 | 7017 |
| 2005 | 5811 |
| 2006 | 7070 |
| 2007 | 16347 |
| 2008 | 7411 |
| 2009 | |
| 2010 | 8369 |
| 2011 | 8318 |
| 2012 | 8681 |
| 2013 | 8712 |
| 2014 | 8992 |
| 2015 | 9149 |
| 2016 | 9389 |
| 2017 | 9464 |
| 2018 | 9511 |