| 年度 | 实际值 |
|---|---|
| 1992 | 443.08 |
| 1993 | 445.84 |
| 1994 | 448.76 |
| 1995 | 452.19 |
| 1996 | 455.02 |
| 1997 | 457.38 |
| 1998 | 459.45 |
| 1999 | 461.45 |
| 2000 | 463.68 |
| 2001 | 464.38 |
| 2002 | 465.91 |
| 2003 | 468.06 |
| 2004 | 473.99 |
| 2005 | 479.63 |
| 2006 | 484.1 |
| 2007 | 489.15 |
| 2008 | 493.38 |
| 2009 | |
| 2010 | 502.32 |
| 2011 | 503 |
| 2012 | 505.2 |
| 2013 | 508.4 |
| 2014 | |
| 2015 | 505.68 |
| 2016 | 508 |
| 2017 | 510 |
| 2018 | 510 |