| 年度 | 实际值 |
|---|---|
| 1993 | 7797 |
| 1994 | 8221 |
| 1995 | 8085 |
| 1996 | 6692 |
| 1997 | 5073 |
| 1998 | 5006 |
| 1999 | 6727 |
| 2000 | 6878 |
| 2001 | 7907 |
| 2002 | 5571 |
| 2003 | 7950 |
| 2004 | 9513 |
| 2005 | 8723 |
| 2006 | 9163 |
| 2007 | 10348 |
| 2008 | 10242 |
| 2009 | |
| 2010 | 10892 |
| 2011 | 12033 |
| 2012 | 12037 |
| 2013 | 13100 |
| 2014 | 12976 |
| 2015 | 13425 |
| 2016 | 14410 |
| 2017 | 14482 |
| 2018 | 15187 |