| 年度 | 实际值 |
|---|---|
| 1994 | 12940 |
| 1995 | 13336 |
| 1996 | |
| 1997 | 13934 |
| 1998 | 14212 |
| 1999 | 14328 |
| 2000 | 14501 |
| 2001 | 14674 |
| 2002 | 14501 |
| 2003 | 15398 |
| 2004 | 15217 |
| 2005 | 14991 |
| 2006 | 14855 |
| 2007 | 14643 |
| 2008 | 16198 |
| 2009 | 15973 |
| 2010 | 16048 |
| 2011 | 15643 |
| 2012 | 14715 |
| 2013 | 14158 |
| 2014 | 14334 |
| 2015 | 14725 |
| 2016 | 15060 |