| 年度 | 实际值 |
|---|---|
| 1992 | 1975 |
| 1993 | 1998 |
| 1994 | 2008 |
| 1995 | 899 |
| 1996 | 907 |
| 1997 | 919 |
| 1998 | 672 |
| 1999 | 677 |
| 2000 | 603 |
| 2001 | 607 |
| 2002 | 613 |
| 2003 | 1412.36 |
| 2004 | 1422.78 |
| 2005 | 1439.84 |
| 2006 | 580.24 |
| 2007 | 586.01 |
| 2008 | 589.26 |
| 2009 | |
| 2010 | 592.44 |
| 2011 | 679.93 |
| 2012 | 601.26 |
| 2013 | 603.91 |
| 2014 | 656.93 |
| 2015 | 617.01 |