| 年度 | 实际值 |
|---|---|
| 1992 | 351.04 |
| 1993 | 353.22 |
| 1994 | 356.23 |
| 1995 | 359.63 |
| 1996 | 432.96 |
| 1997 | 437.25 |
| 1998 | 443.53 |
| 1999 | 448.15 |
| 2000 | 455.6 |
| 2001 | 459.64 |
| 2002 | 464.03 |
| 2003 | 467.83 |
| 2004 | 468.81 |
| 2005 | 472.18 |
| 2006 | 479.42 |
| 2007 | 482.2293 |
| 2008 | 488.25 |
| 2009 | 490.6397 |
| 2010 | 497.73 |
| 2011 | 505.1752 |
| 2012 | 510.9947 |
| 2013 | 520.18 |
| 2014 | 526.52 |
| 2015 | 530.56 |
| 2016 | 534 |
| 2017 | 533 |
| 2018 | 534 |