| 年度 | 实际值 |
|---|---|
| 1992 | 8631 |
| 1993 | 8541 |
| 1994 | 9189 |
| 1995 | 9471 |
| 1996 | 9518 |
| 1997 | 9268 |
| 1998 | 11241 |
| 1999 | 9793 |
| 2000 | 11438 |
| 2001 | 11703 |
| 2002 | 11939 |
| 2003 | 11882 |
| 2004 | 12886 |
| 2005 | 15413 |
| 2006 | 16193.7 |
| 2007 | 17338.4 |
| 2008 | 18882.1 |
| 2009 | |
| 2010 | 22896.41 |
| 2011 | 25743 |
| 2012 | 27493 |
| 2013 | 29620 |
| 2014 | 28146 |