| 年度 | 实际值 |
|---|---|
| 1993 | 8776 |
| 1994 | 8827 |
| 1995 | 9370 |
| 1996 | 9908 |
| 1997 | 10487 |
| 1998 | 10525 |
| 1999 | 9096 |
| 2000 | 9126 |
| 2001 | 9547 |
| 2002 | 10277 |
| 2003 | 10391 |
| 2004 | 10571 |
| 2005 | 10743 |
| 2006 | 11095 |
| 2007 | 11590 |
| 2008 | 12900 |
| 2009 | |
| 2010 | 15428 |
| 2011 | 15891 |
| 2012 | 17845 |
| 2013 | 19621 |
| 2014 | 17597 |
| 2015 | 16955 |
| 2016 | 17597 |
| 2017 | 18097 |
| 2018 | 19486 |