| 年度 | 实际值 |
|---|---|
| 1992 | 445.34 |
| 1993 | 450.87 |
| 1994 | 456.79 |
| 1995 | 463.62 |
| 1996 | 468.73 |
| 1997 | 473.05 |
| 1998 | 464.17 |
| 1999 | 467.12 |
| 2000 | 474.51 |
| 2001 | 477.32 |
| 2002 | 481.66 |
| 2003 | 483.91 |
| 2004 | 489.75 |
| 2005 | 494.26 |
| 2006 | 499.69 |
| 2007 | 506.84 |
| 2008 | 510.45 |
| 2009 | 516.3801 |
| 2010 | 520.0899 |
| 2011 | 525.7157 |
| 2012 | 527.9186 |
| 2013 | 533.1983 |
| 2014 | |
| 2015 | 527.59 |
| 2016 | 530 |
| 2017 | 468 |
| 2018 | 460 |