| 年度 | 实际值 |
|---|---|
| 1992 | 455 |
| 1993 | 467 |
| 1994 | 471 |
| 1995 | 474 |
| 1996 | 494 |
| 1997 | 503 |
| 1998 | 510 |
| 1999 | 527 |
| 2000 | 557 |
| 2001 | 4018 |
| 2002 | 567 |
| 2003 | 572.48 |
| 2004 | 574.08 |
| 2005 | 575.78 |
| 2006 | 590.59 |
| 2007 | 563.32 |
| 2008 | 570.04 |
| 2009 | |
| 2010 | 588.11 |
| 2011 | 598.89 |
| 2012 | 589.25 |
| 2013 | 606.46 |
| 2014 | 617.6 |
| 2015 | 620.62 |