| 年度 | 实际值 |
|---|---|
| 1992 | 423 |
| 1993 | 431 |
| 1994 | 434 |
| 1995 | 441 |
| 1996 | 406 |
| 1997 | 413 |
| 1998 | 416 |
| 1999 | 421 |
| 2000 | 428 |
| 2001 | 432 |
| 2002 | 436 |
| 2003 | 443.48 |
| 2004 | 448.31 |
| 2005 | 443.49 |
| 2006 | 451.53 |
| 2007 | 463.5 |
| 2008 | 473.18 |
| 2009 | |
| 2010 | 494.07 |
| 2011 | 497.73 |
| 2012 | 499.83 |
| 2013 | 507.6 |
| 2014 | 512.33 |
| 2015 | 517.83 |