| 年度 | 实际值 |
|---|---|
| 1992 | 114 |
| 1993 | 118 |
| 1994 | 120 |
| 1995 | 125 |
| 1996 | 126 |
| 1997 | 128 |
| 1998 | 129 |
| 1999 | 131 |
| 2000 | 136 |
| 2001 | 137 |
| 2002 | 139 |
| 2003 | 140.78 |
| 2004 | 144.15 |
| 2005 | 145.96 |
| 2006 | 149.33 |
| 2007 | 138.83 |
| 2008 | 140.5 |
| 2009 | |
| 2010 | 142.45 |
| 2011 | 173.78 |
| 2012 | 174.58 |
| 2013 | 175.51 |
| 2014 | 176.53 |
| 2015 | 163.14 |