| 年度 | 实际值 |
|---|---|
| 1992 | 207 |
| 1993 | 221 |
| 1994 | 222 |
| 1995 | 224 |
| 1996 | 225 |
| 1997 | 227 |
| 1998 | 919 |
| 1999 | 229 |
| 2000 | 230 |
| 2001 | 230 |
| 2002 | 231 |
| 2003 | 230.91 |
| 2004 | 231.67 |
| 2005 | 233.09 |
| 2006 | 234.62 |
| 2007 | 235.29 |
| 2008 | 235.69 |
| 2009 | |
| 2010 | 235.09 |
| 2011 | 234.92 |
| 2012 | 232.72 |
| 2013 | 232.49 |
| 2014 | 232.61 |
| 2015 | 231.04 |