| 年度 | 实际值 |
|---|---|
| 1992 | 690 |
| 1993 | 687 |
| 1994 | 686 |
| 1995 | 685 |
| 1996 | 683 |
| 1997 | 687 |
| 1998 | 690 |
| 1999 | 694 |
| 2000 | 697 |
| 2001 | 700 |
| 2002 | 704 |
| 2003 | 705.55 |
| 2004 | 708.52 |
| 2005 | 709.59 |
| 2006 | 710.77 |
| 2007 | 711.93 |
| 2008 | 714.66 |
| 2009 | |
| 2010 | 717.61 |
| 2011 | 720.83 |
| 2012 | 720.01 |
| 2013 | 719.92 |
| 2014 | 724.45 |
| 2015 | 729.19 |