| 年度 | 实际值 |
|---|---|
| 1992 | 564 |
| 1993 | 572 |
| 1994 | 577 |
| 1995 | 490 |
| 1996 | 497 |
| 1997 | 505 |
| 1998 | 516 |
| 1999 | 468 |
| 2000 | 474 |
| 2001 | 468 |
| 2002 | 474 |
| 2003 | 599.63 |
| 2004 | 456.25 |
| 2005 | 457.12 |
| 2006 | 530.18 |
| 2007 | 536.9 |
| 2008 | 542.11 |
| 2009 | |
| 2010 | 546.04 |
| 2011 | 485.43 |
| 2012 | 489.58 |
| 2013 | 493.69 |
| 2014 | 495.72 |
| 2015 | 526.14 |