| 年度 | 实际值 |
|---|---|
| 1992 | 209 |
| 1993 | 213 |
| 1994 | 214 |
| 1995 | 217 |
| 1996 | 222 |
| 1997 | 224 |
| 1998 | 229 |
| 1999 | 232 |
| 2000 | 234 |
| 2001 | 235 |
| 2002 | 237 |
| 2003 | 239.81 |
| 2004 | 240.32 |
| 2005 | 241.26 |
| 2006 | 239.81 |
| 2007 | 240.32 |
| 2008 | 240.92 |
| 2009 | |
| 2010 | 272.56 |
| 2011 | 239.56 |
| 2012 | 239.05 |
| 2013 | 245.53 |
| 2014 | 245.7 |
| 2015 | 243.27 |