| 年度 | 实际值 |
|---|---|
| 1992 | 474 |
| 1993 | 482 |
| 1994 | 486 |
| 1995 | 499 |
| 1996 | 507 |
| 1997 | 515 |
| 1998 | 530 |
| 1999 | 540 |
| 2000 | 563 |
| 2001 | 571 |
| 2002 | 577 |
| 2003 | 583.1 |
| 2004 | 585.26 |
| 2005 | 592.89 |
| 2006 | 612.31 |
| 2007 | 625.27 |
| 2008 | 633.33 |
| 2009 | |
| 2010 | 652.09 |
| 2011 | 664.43 |
| 2012 | 655.49 |
| 2013 | 663.13 |
| 2014 | 675.93 |
| 2015 | 687.72 |