| 年度 | 实际值 |
|---|---|
| 1992 | 488.76 |
| 1993 | 493.69 |
| 1994 | 497.09 |
| 1995 | 500.6 |
| 1996 | 504.28 |
| 1997 | 507.66 |
| 1998 | 508.73 |
| 1999 | 512.51 |
| 2000 | 518.66 |
| 2001 | 521.97 |
| 2002 | 525.42 |
| 2003 | 533.14 |
| 2004 | 539.98 |
| 2005 | 547.18 |
| 2006 | 553.7 |
| 2007 | 559.9 |
| 2008 | 567.37 |
| 2009 | |
| 2010 | 581.4 |
| 2011 | 590.9 |
| 2012 | 593 |
| 2013 | 602 |
| 2014 | |
| 2015 | 617.45 |
| 2016 | 626 |
| 2017 | 624 |
| 2018 | 627 |