| 年度 | 实际值 |
|---|---|
| 1992 | 108.2 |
| 1993 | |
| 1994 | |
| 1995 | 109.1 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 108.2 |
| 2000 | 107.8 |
| 2001 | 107 |
| 2002 | 106.9 |
| 2003 | 106 |
| 2004 | 106 |
| 2005 | 106 |
| 2006 | 106 |
| 2007 | 106.05 |
| 2008 | 106.78 |
| 2009 | 107.18 |
| 2010 | 107.24 |
| 2011 | 107.61 |
| 2012 | 107.73 |
| 2013 | 107.88 |
| 2014 | 108.19 |
| 2015 | 108.29 |
| 2016 | 108.3 |
| 2017 | 108.3 |
| 2018 | 108.13 |