| 年度 | 实际值 |
|---|---|
| 1992 | 416.02 |
| 1993 | 420.02 |
| 1994 | 423.24 |
| 1995 | 426.51 |
| 1996 | 441.7 |
| 1997 | 446.1 |
| 1998 | 441.47 |
| 1999 | 446.39 |
| 2000 | 451.8 |
| 2001 | 442.03 |
| 2002 | 444.3 |
| 2003 | 447.3 |
| 2004 | 447.04 |
| 2005 | 445.3 |
| 2006 | 450.21 |
| 2007 | 452.77 |
| 2008 | 456.49 |
| 2009 | |
| 2010 | 457.74 |
| 2011 | 459.9 |
| 2012 | 461.2 |
| 2013 | 464.3 |
| 2014 | |
| 2015 | 462.63 |
| 2016 | 463 |
| 2017 | 460 |
| 2018 | 459 |