| 年度 | 实际值 |
|---|---|
| 1992 | 6003 |
| 1993 | 6363 |
| 1994 | 3363 |
| 1995 | 2729 |
| 1996 | 5138 |
| 1997 | 5951 |
| 1998 | 5612 |
| 1999 | 8728 |
| 2000 | 7871 |
| 2001 | 8161 |
| 2002 | 9356 |
| 2003 | 10115 |
| 2004 | 12521 |
| 2005 | 14725 |
| 2006 | 14777.57 |
| 2007 | 14789.9 |
| 2008 | 13222.8 |
| 2009 | |
| 2010 | 12865.32 |
| 2011 | 13372 |
| 2012 | 14294 |
| 2013 | 16532 |
| 2014 | 11294 |