| 年度 | 实际值 |
|---|---|
| 1993 | 3673 |
| 1994 | 3689 |
| 1995 | 3691 |
| 1996 | 4975 |
| 1997 | 5125 |
| 1998 | 5467 |
| 1999 | 4374 |
| 2000 | 3500 |
| 2001 | 3538 |
| 2002 | 4068 |
| 2003 | 3765 |
| 2004 | 4429 |
| 2005 | 3676 |
| 2006 | 3010 |
| 2007 | 4100 |
| 2008 | 4152 |
| 2009 | |
| 2010 | 7784 |
| 2011 | 4731 |
| 2012 | 4708 |
| 2013 | 5039 |
| 2014 | 5200 |
| 2015 | 9836 |
| 2016 | 10218 |
| 2017 | 11042 |
| 2018 | 11756 |