| 年度 | 实际值 |
|---|---|
| 1993 | 13719 |
| 1994 | 13952 |
| 1995 | 14480 |
| 1996 | 7552 |
| 1997 | 7842 |
| 1998 | 5870 |
| 1999 | 5765 |
| 2000 | 5860 |
| 2001 | 5781 |
| 2002 | 5201 |
| 2003 | 6574 |
| 2004 | 6417 |
| 2005 | 7002 |
| 2006 | 7571 |
| 2007 | 7640 |
| 2008 | 7355 |
| 2009 | 7841 |
| 2010 | 7881 |
| 2011 | 8066 |
| 2012 | 8818 |
| 2013 | 9276 |
| 2014 | 9491 |
| 2015 | 9826 |
| 2016 | 10405 |
| 2017 | 10900 |
| 2018 | 11209 |