| 年度 | 实际值 |
|---|---|
| 1992 | 560 |
| 1993 | 502 |
| 1994 | 503 |
| 1995 | 506 |
| 1996 | 508 |
| 1997 | 511 |
| 1998 | 516 |
| 1999 | 519 |
| 2000 | 520 |
| 2001 | 521 |
| 2002 | 523 |
| 2003 | 524.44 |
| 2004 | 528.21 |
| 2005 | 530.53 |
| 2006 | 531.83 |
| 2007 | 533.67 |
| 2008 | 530.56 |
| 2009 | |
| 2010 | 538.37 |
| 2011 | 540.45 |
| 2012 | 538.71 |
| 2013 | 541.39 |
| 2014 | 548.46 |
| 2015 | 552.34 |