| 年度 | 实际值 |
|---|---|
| 1992 | 522.95 |
| 1993 | 529.6 |
| 1994 | 535.36 |
| 1995 | 539.65 |
| 1996 | 545.74 |
| 1997 | 471.8 |
| 1998 | 475.75 |
| 1999 | 480.27 |
| 2000 | 479.24 |
| 2001 | 481.67 |
| 2002 | 484.99 |
| 2003 | 489.11 |
| 2004 | 494.44 |
| 2005 | 499.25 |
| 2006 | 507.75 |
| 2007 | 516.7 |
| 2008 | 523.94 |
| 2009 | |
| 2010 | 539.59 |
| 2011 | 548.9 |
| 2012 | 545.6 |
| 2013 | 537.5 |
| 2014 | |
| 2015 | 562.29 |
| 2016 | 568 |
| 2017 | 567 |
| 2018 | 570 |