| 年度 | 实际值 |
|---|---|
| 1992 | 538 |
| 1993 | 548 |
| 1994 | 551 |
| 1995 | 562 |
| 1996 | 578 |
| 1997 | 585 |
| 1998 | 592 |
| 1999 | 600 |
| 2000 | 609 |
| 2001 | 621 |
| 2002 | 632 |
| 2003 | 641.38 |
| 2004 | 645.9 |
| 2005 | 651.69 |
| 2006 | 1231.23 |
| 2007 | 984.95 |
| 2008 | 997.33 |
| 2009 | |
| 2010 | 717.24 |
| 2011 | 759.14 |
| 2012 | 762.39 |
| 2013 | 465.04 |
| 2014 | 473.02 |
| 2015 | 478.85 |