| 年度 | 实际值 |
|---|---|
| 1992 | 66.8 |
| 1993 | |
| 1994 | |
| 1995 | 68.7 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 72.23 |
| 2000 | 729217 |
| 2001 | 729105 |
| 2002 | 57.1077 |
| 2003 | 56.8694 |
| 2004 | 57.0579 |
| 2005 | 57.2488 |
| 2006 | 57.65 |
| 2007 | 57.29 |
| 2008 | 58.22 |
| 2009 | 59.0985 |
| 2010 | 58.7828 |
| 2011 | 60.4308 |
| 2012 | 60.98 |
| 2013 | 61.63 |
| 2014 | 62.58 |
| 2015 | 63.53 |
| 2016 | 59.2 |