| 年度 | 实际值 |
|---|---|
| 1992 | 412 |
| 1993 | 498 |
| 1994 | 501 |
| 1995 | 507 |
| 1996 | 508 |
| 1997 | 512 |
| 1998 | 518 |
| 1999 | 522 |
| 2000 | 528 |
| 2001 | 530 |
| 2002 | 532 |
| 2003 | 534.55 |
| 2004 | 538.18 |
| 2005 | 540.67 |
| 2006 | 547.25 |
| 2007 | 556.37 |
| 2008 | 568.09 |
| 2009 | |
| 2010 | 586.28 |
| 2011 | 592.7 |
| 2012 | 601.42 |
| 2013 | 613.58 |
| 2014 | 621.64 |
| 2015 | 627.36 |