| 年度 | 实际值 |
|---|---|
| 1992 | 337.51 |
| 1993 | 340.35 |
| 1994 | 343.04 |
| 1995 | 340.18 |
| 1996 | 348.94 |
| 1997 | 351.63 |
| 1998 | 354.56 |
| 1999 | 356.72 |
| 2000 | 363.37 |
| 2001 | 364.46 |
| 2002 | 365.21 |
| 2003 | 367.1 |
| 2004 | 369.2 |
| 2005 | 369.53 |
| 2006 | 371.78 |
| 2007 | 376.97 |
| 2008 | 377.95 |
| 2009 | 378.7753 |
| 2010 | 381.091 |
| 2011 | 383.193 |
| 2012 | 383.9028 |
| 2013 | 385.627 |
| 2014 | |
| 2015 | 384.54 |
| 2016 | 384 |
| 2017 | 381 |
| 2018 | 378 |