| 年度 | 实际值 |
|---|---|
| 1992 | 779.86 |
| 1993 | 781.2 |
| 1994 | 782.43 |
| 1995 | 784.24 |
| 1996 | 785.24 |
| 1997 | 786.3 |
| 1998 | 787.49 |
| 1999 | 785.99 |
| 2000 | 784.53 |
| 2001 | 782.46 |
| 2002 | 780.26 |
| 2003 | 777.62 |
| 2004 | 773.79 |
| 2005 | 770.86 |
| 2006 | 769.79 |
| 2007 | 766.1346 |
| 2008 | 763.72 |
| 2009 | 762.66 |
| 2010 | 762.92 |
| 2011 | 764.879 |
| 2012 | 765.1965 |
| 2013 | 766.51 |
| 2014 | 767.63 |
| 2015 | 766.77 |
| 2016 | 767 |
| 2017 | 764 |
| 2018 | 763 |