| 年度 | 实际值 |
|---|---|
| 1992 | 56.42 |
| 1993 | 56.7 |
| 1994 | 56.89 |
| 1995 | 57.59 |
| 1996 | 57.95 |
| 1997 | |
| 1998 | |
| 1999 | |
| 2000 | 59.81 |
| 2001 | 60.42 |
| 2002 | 60.98 |
| 2003 | 61.31 |
| 2004 | 62.2 |
| 2005 | 62.8 |
| 2006 | 63.07 |
| 2007 | 63.11 |
| 2008 | 63.16 |
| 2009 | |
| 2010 | 63.23 |
| 2011 | 64.4 |
| 2012 | 64.6 |
| 2013 | 65.4 |
| 2014 | 106.2 |
| 2015 | 107.8 |
| 2016 | 108 |
| 2017 | 109 |
| 2018 | 110 |