| 年度 | 实际值 |
|---|---|
| 1992 | 679 |
| 1993 | 683 |
| 1994 | 665 |
| 1995 | 671 |
| 1996 | 676 |
| 1997 | 678 |
| 1998 | 679 |
| 1999 | 680 |
| 2000 | 682 |
| 2001 | 686 |
| 2002 | 687 |
| 2003 | 687.87 |
| 2004 | 689.08 |
| 2005 | 689.72 |
| 2006 | 690.62 |
| 2007 | 692.27 |
| 2008 | 692.53 |
| 2009 | |
| 2010 | 515.6 |
| 2011 | 698.46 |
| 2012 | 700.13 |
| 2013 | 699.3 |
| 2014 | 707.03 |
| 2015 | 709.27 |