| 年度 | 实际值 |
|---|---|
| 1992 | 383 |
| 1993 | 391 |
| 1994 | 393 |
| 1995 | 355 |
| 1996 | 359 |
| 1997 | 409 |
| 1998 | 412 |
| 1999 | 418 |
| 2000 | 429 |
| 2001 | 434 |
| 2002 | 436 |
| 2003 | 439.83 |
| 2004 | 443.12 |
| 2005 | 447.23 |
| 2006 | 455.68 |
| 2007 | 468.44 |
| 2008 | 472.61 |
| 2009 | |
| 2010 | 499.97 |
| 2011 | 503.15 |
| 2012 | 503.75 |
| 2013 | 507.61 |
| 2014 | 507.34 |
| 2015 | 515.43 |