| 年度 | 实际值 |
|---|---|
| 1993 | 4098 |
| 1994 | 4154 |
| 1995 | 5085 |
| 1996 | 4637 |
| 1997 | 5006 |
| 1998 | 5090 |
| 1999 | 5465 |
| 2000 | |
| 2001 | |
| 2002 | |
| 2003 | 5814 |
| 2004 | 6456 |
| 2005 | 7863 |
| 2006 | 9088 |
| 2007 | 9891 |
| 2008 | 10888 |
| 2009 | |
| 2010 | 11569 |
| 2011 | 13395 |
| 2012 | 13007 |
| 2013 | 10727 |
| 2014 | 16046 |
| 2015 | 18079 |
| 2016 | 18581 |
| 2017 | 19578 |
| 2018 | 23928 |