| 年度 | 实际值 |
|---|---|
| 1992 | 164.93 |
| 1993 | 166.15 |
| 1994 | 167.37 |
| 1995 | 168.89 |
| 1996 | 169.96 |
| 1997 | 171.15 |
| 1998 | 177.34 |
| 1999 | 173.04 |
| 2000 | 173.78 |
| 2001 | 174.71 |
| 2002 | 176.35 |
| 2003 | 177.74 |
| 2004 | 180.21 |
| 2005 | 179.67 |
| 2006 | 181.97 |
| 2007 | 184.65 |
| 2008 | 185.77 |
| 2009 | |
| 2010 | 188.09 |
| 2011 | 190.3 |
| 2012 | 192.4 |
| 2013 | 193.6 |
| 2014 | |
| 2015 | 198.34 |
| 2016 | 200 |
| 2017 | 200 |
| 2018 | 200 |