| 年度 | 实际值 |
|---|---|
| 1992 | 388 |
| 1993 | 391 |
| 1994 | 397 |
| 1995 | 408 |
| 1996 | 412 |
| 1997 | 626 |
| 1998 | 660 |
| 1999 | 637 |
| 2000 | 423 |
| 2001 | 428 |
| 2002 | 434 |
| 2003 | 439.36 |
| 2004 | 444.4 |
| 2005 | 447.09 |
| 2006 | 453.38 |
| 2007 | 459.42 |
| 2008 | 509.5 |
| 2009 | |
| 2010 | 692.79 |
| 2011 | 482.5 |
| 2012 | 487.81 |
| 2013 | 495.81 |
| 2014 | 495.53 |
| 2015 | 497.48 |