| 年度 | 实际值 |
|---|---|
| 1992 | 64.05 |
| 1993 | 64.93 |
| 1994 | 66.16 |
| 1995 | 66.85 |
| 1996 | 68 |
| 1997 | 69.24 |
| 1998 | 70.15 |
| 1999 | 84.9 |
| 2000 | 86.63 |
| 2001 | 89.06 |
| 2002 | 92.02 |
| 2003 | 95.42 |
| 2004 | 99.53 |
| 2005 | 100.71 |
| 2006 | 105.23 |
| 2007 | 106.08 |
| 2008 | 105.53 |
| 2009 | |
| 2010 | 106.25 |
| 2011 | 108.1 |
| 2012 | 108.3 |
| 2013 | 106.9 |
| 2014 | 110.5 |
| 2015 | 282.25 |
| 2016 | 285 |
| 2017 | 284 |
| 2018 | 288 |