| 年度 | 实际值 |
|---|---|
| 1992 | 108 |
| 1993 | 112 |
| 1994 | 115 |
| 1995 | 123 |
| 1996 | 125 |
| 1997 | 126 |
| 1998 | 128 |
| 1999 | 130 |
| 2000 | 132 |
| 2001 | 132 |
| 2002 | 135 |
| 2003 | 135.05 |
| 2004 | 135.91 |
| 2005 | 136.66 |
| 2006 | 137.67 |
| 2007 | 139.74 |
| 2008 | 142.01 |
| 2009 | |
| 2010 | 142.78 |
| 2011 | 144.25 |
| 2012 | 141.32 |
| 2013 | 140.63 |
| 2014 | 141.52 |
| 2015 | 140.89 |