| 年度 | 实际值 |
|---|---|
| 1993 | 8070 |
| 1994 | 8383 |
| 1995 | 8594 |
| 1996 | 11599 |
| 1997 | 10203 |
| 1998 | 10651 |
| 1999 | 13523 |
| 2000 | 13966 |
| 2001 | 9725 |
| 2002 | 9765 |
| 2003 | 9938 |
| 2004 | 11063 |
| 2005 | 12066 |
| 2006 | 12762 |
| 2007 | 13210 |
| 2008 | 11813 |
| 2009 | |
| 2010 | 12568 |
| 2011 | 13910 |
| 2012 | 27677 |
| 2013 | 26509 |
| 2014 | 19139 |
| 2015 | 19704 |
| 2016 | 20415 |
| 2017 | 21605 |
| 2018 | 22731 |