| 年度 | 实际值 |
|---|---|
| 1993 | 10121 |
| 1994 | 10455 |
| 1995 | 10154 |
| 1996 | 10399 |
| 1997 | 9468 |
| 1998 | 9682 |
| 1999 | 9063 |
| 2000 | 10638 |
| 2001 | 9552 |
| 2002 | 8570 |
| 2003 | 10109 |
| 2004 | 10330 |
| 2005 | 9728 |
| 2006 | 10698 |
| 2007 | 11246 |
| 2008 | 11440 |
| 2009 | |
| 2010 | 13248 |
| 2011 | 11640 |
| 2012 | 12818 |
| 2013 | 15491 |
| 2014 | 21451 |
| 2015 | 18719 |
| 2016 | 20720 |
| 2017 | 28250 |
| 2018 | 30893 |