| 年度 | 实际值 |
|---|---|
| 1992 | 59.45 |
| 1993 | 61.25 |
| 1994 | 63.06 |
| 1995 | 64.02 |
| 1996 | 66.56 |
| 1997 | 71.19 |
| 1998 | 72.34 |
| 1999 | 73.7 |
| 2000 | 74.85 |
| 2001 | 76.02 |
| 2002 | 77.22 |
| 2003 | 80.2 |
| 2004 | 78.5 |
| 2005 | 78.88 |
| 2006 | 79.33 |
| 2007 | 79.53 |
| 2008 | 79.66 |
| 2009 | |
| 2010 | 100.21 |
| 2011 | 93.2 |
| 2012 | 95.6 |
| 2013 | 95.1 |
| 2014 | 122.2 |
| 2015 | 96.43 |
| 2016 | 104 |
| 2017 | 97 |
| 2018 | 132 |