| 年度 | 实际值 |
|---|---|
| 1992 | 498.52 |
| 1993 | 503.47 |
| 1994 | 508.36 |
| 1995 | 514.05 |
| 1996 | 519.22 |
| 1997 | 524.67 |
| 1998 | 529.21 |
| 1999 | 533.18 |
| 2000 | 540.36 |
| 2001 | 545.48 |
| 2002 | 550.54 |
| 2003 | 556.74 |
| 2004 | 562.99 |
| 2005 | 569.2 |
| 2006 | 576.57 |
| 2007 | 584.04 |
| 2008 | 589.57 |
| 2009 | |
| 2010 | 603.86 |
| 2011 | 612.5 |
| 2012 | 617 |
| 2013 | 625 |
| 2014 | |
| 2015 | 637.44 |
| 2016 | 646 |
| 2017 | 647 |
| 2018 | 656 |