| 年度 | 实际值 |
|---|---|
| 1992 | 2317 |
| 1993 | 2286 |
| 1994 | 385 |
| 1995 | 388 |
| 1996 | 391 |
| 1997 | 393 |
| 1998 | 395 |
| 1999 | 393 |
| 2000 | 394 |
| 2001 | 394 |
| 2002 | 397 |
| 2003 | 399.39 |
| 2004 | 403.63 |
| 2005 | 408.77 |
| 2006 | 417.34 |
| 2007 | 426.78 |
| 2008 | 434.7 |
| 2009 | |
| 2010 | 447.66 |
| 2011 | 453.02 |
| 2012 | 455.05 |
| 2013 | 441.72 |
| 2014 | 445.66 |
| 2015 | 448.53 |