| 年度 | 实际值 |
|---|---|
| 1992 | 1602 |
| 1993 | 1582 |
| 1994 | 1536 |
| 1995 | 1290 |
| 1996 | 1189 |
| 1997 | 5904 |
| 1998 | 10016 |
| 1999 | 6362 |
| 2000 | 11157 |
| 2001 | 9483 |
| 2002 | 10355 |
| 2003 | 9647 |
| 2004 | 10570 |
| 2005 | 10522 |
| 2006 | 11144.62 |
| 2007 | 11803.5 |
| 2008 | 8788.1 |
| 2009 | |
| 2010 | 14184.66 |
| 2011 | 15789 |
| 2012 | 17219 |
| 2013 | 15498 |
| 2014 | 7417 |