| 年度 | 实际值 |
|---|---|
| 1992 | 5981 |
| 1993 | 7387 |
| 1994 | 7332 |
| 1995 | 10299 |
| 1996 | 11818 |
| 1997 | 12984 |
| 1998 | 12906 |
| 1999 | 13408 |
| 2000 | 13501 |
| 2001 | 15166 |
| 2002 | 16033 |
| 2003 | 14666 |
| 2004 | 18274 |
| 2005 | 19028 |
| 2006 | 24400.23 |
| 2007 | 21349.1 |
| 2008 | 22619.7 |
| 2009 | |
| 2010 | 23804.57 |
| 2011 | 24582 |
| 2012 | 26184 |
| 2013 | 27429 |
| 2014 | 9854 |