| 年度 | 实际值 |
|---|---|
| 1992 | 153.2 |
| 1993 | |
| 1994 | |
| 1995 | 153.4 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 154.6 |
| 2000 | 154.8 |
| 2001 | 155 |
| 2002 | 155.2 |
| 2003 | 155 |
| 2004 | 155 |
| 2005 | 154 |
| 2006 | 155 |
| 2007 | 153.92 |
| 2008 | 154.43 |
| 2009 | 155.94 |
| 2010 | 156.12 |
| 2011 | 157.3 |
| 2012 | 157.2834 |
| 2013 | 157.79 |
| 2014 | 158 |
| 2015 | 158.16 |
| 2016 | 158.3 |
| 2017 | 156.6 |
| 2018 | 155.67 |