| 年度 | 实际值 |
|---|---|
| 1992 | 676 |
| 1993 | 681 |
| 1994 | 682 |
| 1995 | 685 |
| 1996 | 689 |
| 1997 | 691 |
| 1998 | 691 |
| 1999 | 693 |
| 2000 | 693.91 |
| 2001 | 693.68 |
| 2002 | 694.3 |
| 2003 | 694.54 |
| 2004 | 694.506534 |
| 2005 | 696 |
| 2006 | 698.613118196846 |
| 2007 | 698.684949311152 |
| 2008 | 698.650376917078 |
| 2009 | 701.533662594229 |
| 2010 | 703.68079022615 |
| 2011 | 706.67065245646 |
| 2012 | 820.058152021539 |
| 2013 | 823 |
| 2014 | 826 |
| 2015 | 827 |