| 年度 | 实际值 |
|---|---|
| 1992 | 116.21 |
| 1993 | 145.54 |
| 1994 | 189.95 |
| 1995 | 190.72 |
| 1996 | 191.77 |
| 1997 | 192.66 |
| 1998 | 193.42 |
| 1999 | 194.88 |
| 2000 | 195.98 |
| 2001 | 196.4 |
| 2002 | 196.03 |
| 2003 | 194.5 |
| 2004 | 194.16 |
| 2005 | 191.38 |
| 2006 | 190.84 |
| 2007 | 191.1 |
| 2008 | 190.84 |
| 2009 | |
| 2010 | 189.2 |
| 2011 | 188.9 |
| 2012 | 185.9 |
| 2013 | 186.6 |
| 2014 | |
| 2015 | 181.7 |
| 2016 | 181 |
| 2017 | 175 |
| 2018 | 173 |
| 2019 | 169.4 |