| 年度 | 实际值 |
|---|---|
| 1992 | 645.74 |
| 1993 | 651.04 |
| 1994 | 657.5 |
| 1995 | 667.29 |
| 1996 | 676.78 |
| 1997 | 683.79 |
| 1998 | 686.87 |
| 1999 | 691.23 |
| 2000 | 699.64 |
| 2001 | 705.7 |
| 2002 | 712.5 |
| 2003 | 718.23 |
| 2004 | 724.09 |
| 2005 | 731.5 |
| 2006 | 739.26 |
| 2007 | 745.96 |
| 2008 | 752.53 |
| 2009 | 756.51 |
| 2010 | 758.89 |
| 2011 | 761.77 |
| 2012 | 756.9 |
| 2013 | 752.67 |
| 2014 | 754.55 |
| 2015 | 753.84 |
| 2016 | 753 |
| 2017 | 749 |
| 2018 | 751 |