| 年度 | 实际值 |
|---|---|
| 1992 | 571 |
| 1993 | 575 |
| 1994 | 582 |
| 1995 | 596 |
| 1996 | 598 |
| 1997 | 602 |
| 1998 | 608 |
| 1999 | 615 |
| 2000 | 620 |
| 2001 | 626 |
| 2002 | 632 |
| 2003 | 637.11 |
| 2004 | 643.58 |
| 2005 | 648.88 |
| 2006 | 656.87 |
| 2007 | 661.73 |
| 2008 | 663.88 |
| 2009 | |
| 2010 | 664.96 |
| 2011 | 666.22 |
| 2012 | 618.42 |
| 2013 | 618.07 |
| 2014 | 614.32 |
| 2015 | 616.15 |