| 年度 | 实际值 |
|---|---|
| 1992 | 115 |
| 1993 | 118 |
| 1994 | 120 |
| 1995 | 123 |
| 1996 | 124 |
| 1997 | 125 |
| 1998 | 126 |
| 1999 | 127 |
| 2000 | 131 |
| 2001 | 132 |
| 2002 | 133 |
| 2003 | 133.63 |
| 2004 | 135.34 |
| 2005 | 137.14 |
| 2006 | 140.12 |
| 2007 | 138.17 |
| 2008 | 140.22 |
| 2009 | |
| 2010 | 143.75 |
| 2011 | 161.66 |
| 2012 | 162.54 |
| 2013 | 163.41 |
| 2014 | 164.32 |
| 2015 | 152.47 |