| 年度 | 实际值 |
|---|---|
| 1993 | 9530 |
| 1994 | 9125 |
| 1995 | 9227 |
| 1996 | 9289 |
| 1997 | 9610 |
| 1998 | 6414 |
| 1999 | 6525 |
| 2000 | 6624 |
| 2001 | 6666 |
| 2002 | 8373 |
| 2003 | 8954 |
| 2004 | 9722 |
| 2005 | 10162 |
| 2006 | 10723 |
| 2007 | 10995 |
| 2008 | 11317 |
| 2009 | 11286 |
| 2010 | 11751 |
| 2011 | 12265 |
| 2012 | 13092 |
| 2013 | 14767 |
| 2014 | 15562 |
| 2015 | 16632 |
| 2016 | 18107 |
| 2017 | 19610 |
| 2018 | 21004 |