| 年度 | 实际值 |
|---|---|
| 1993 | 10564 |
| 1994 | 10681 |
| 1995 | 11129 |
| 1996 | 11367 |
| 1997 | 11764 |
| 1998 | 12021 |
| 1999 | 11155 |
| 2000 | 11542 |
| 2001 | 12303 |
| 2002 | 10875 |
| 2003 | 11067 |
| 2004 | 11743 |
| 2005 | 11237 |
| 2006 | 11451 |
| 2007 | 13815 |
| 2008 | 13436 |
| 2009 | |
| 2010 | 15753 |
| 2011 | 16106 |
| 2012 | 17858 |
| 2013 | 18134 |
| 2014 | 17724 |
| 2015 | 18303 |
| 2016 | 18737 |
| 2017 | 18690 |
| 2018 | 22677 |