| 年度 | 实际值 |
|---|---|
| 1992 | 26.07 |
| 1993 | 26.4 |
| 1994 | 26.87 |
| 1995 | 26.97 |
| 1996 | 27.37 |
| 1997 | 58.05 |
| 1998 | 58.8 |
| 1999 | 59.5 |
| 2000 | 59.9 |
| 2001 | 60.57 |
| 2002 | 61.31 |
| 2003 | 62.29 |
| 2004 | 62.82 |
| 2005 | 63.38 |
| 2006 | 64.25 |
| 2007 | 64.75 |
| 2008 | 80.65 |
| 2009 | |
| 2010 | 82.07 |
| 2011 | 83 |
| 2012 | 83.3 |
| 2013 | 163.3 |
| 2014 | 163.8 |
| 2015 | 163.55 |
| 2016 | 164 |
| 2017 | 164 |
| 2018 | 164 |