| 年度 | 实际值 |
|---|---|
| 1992 | 107.23 |
| 1993 | 266.82 |
| 1994 | 267.04 |
| 1995 | 268.43 |
| 1996 | 269.96 |
| 1997 | 271.56 |
| 1998 | 273.8 |
| 1999 | 275.33 |
| 2000 | 276.06 |
| 2001 | 276.79 |
| 2002 | 277.52 |
| 2003 | 278.48 |
| 2004 | 280.48 |
| 2005 | 281.71 |
| 2006 | 282.4 |
| 2007 | 283.38 |
| 2008 | 284.54 |
| 2009 | |
| 2010 | 287.92 |
| 2011 | 289 |
| 2012 | 288.1 |
| 2013 | 290.1 |
| 2014 | |
| 2015 | 295.95 |
| 2016 | 300 |
| 2017 | 304 |
| 2018 | 307 |