| 年度 | 实际值 |
|---|---|
| 1992 | 423.9 |
| 1993 | 426.53 |
| 1994 | 428.32 |
| 1995 | 429.19 |
| 1996 | 430.82 |
| 1997 | 432.29 |
| 1998 | 432.21 |
| 1999 | 433.4 |
| 2000 | 434.61 |
| 2001 | 435.9 |
| 2002 | 438.58 |
| 2003 | 442.54 |
| 2004 | 447.19 |
| 2005 | 452.84 |
| 2006 | 457.8 |
| 2007 | 461.7376 |
| 2008 | 464.2 |
| 2009 | 465.65 |
| 2010 | 466.56 |
| 2011 | 467.9632 |
| 2012 | 470.0671 |
| 2013 | 472.23 |
| 2014 | 477.14 |
| 2015 | 480.9 |
| 2016 | 486 |
| 2017 | 493 |
| 2018 | 497 |