| 年度 | 实际值 |
|---|---|
| 1992 | 443.09 |
| 1993 | 447.64 |
| 1994 | 453.24 |
| 1995 | 458.81 |
| 1996 | 464.61 |
| 1997 | 469.44 |
| 1998 | 473.42 |
| 1999 | 476.13 |
| 2000 | 485.15 |
| 2001 | 486.38 |
| 2002 | 488.32 |
| 2003 | 490.6 |
| 2004 | 496.89 |
| 2005 | 498.91 |
| 2006 | 500.94 |
| 2007 | 503.36 |
| 2008 | 505.28 |
| 2009 | |
| 2010 | 514.75 |
| 2011 | 517.6 |
| 2012 | 521.4 |
| 2013 | 525 |
| 2014 | |
| 2015 | 543.79 |
| 2016 | 551 |
| 2017 | 550 |
| 2018 | 548 |