| 年度 | 实际值 |
|---|---|
| 1992 | 185.56 |
| 1993 | 186.45 |
| 1994 | 187.38 |
| 1995 | 188.79 |
| 1996 | 190.07 |
| 1997 | 190.97 |
| 1998 | 191.27 |
| 1999 | 191.37 |
| 2000 | 192.08 |
| 2001 | 192.57 |
| 2002 | 192.96 |
| 2003 | 193.02 |
| 2004 | 192.8 |
| 2005 | 192.68 |
| 2006 | 192.97 |
| 2007 | 193.07 |
| 2008 | 192.46 |
| 2009 | |
| 2010 | 192.38 |
| 2011 | 192.1 |
| 2012 | 191.6 |
| 2013 | 191.1 |
| 2014 | |
| 2015 | 189.47 |
| 2016 | 189 |
| 2017 | 186 |
| 2018 | 185 |