| 年度 | 实际值 |
|---|---|
| 1992 | 9212 |
| 1993 | 11516 |
| 1994 | 11706 |
| 1995 | 11930 |
| 1996 | 12354 |
| 1997 | 12168 |
| 1998 | 11415 |
| 1999 | 11828 |
| 2000 | 12759 |
| 2001 | 13339 |
| 2002 | 13783 |
| 2003 | 14543 |
| 2004 | 14813 |
| 2005 | 16484 |
| 2006 | 16675 |
| 2007 | 18229.05 |
| 2008 | 18279.08 |
| 2009 | |
| 2010 | 17360.2 |
| 2011 | 19269 |
| 2012 | 19537 |
| 2013 | 20274 |
| 2014 | 21967 |