| 年度 | 实际值 |
|---|---|
| 1992 | 931.13 |
| 1993 | 933.89 |
| 1994 | 936.96 |
| 1995 | 938.81 |
| 1996 | 444.82 |
| 1997 | 446.14 |
| 1998 | 446.59 |
| 1999 | 447.39 |
| 2000 | 450.62 |
| 2001 | 451.59 |
| 2002 | 452.22 |
| 2003 | 453.61 |
| 2004 | 454.29 |
| 2005 | 456.31 |
| 2006 | 458.64 |
| 2007 | 459.246 |
| 2008 | 459.79 |
| 2009 | 458.7967 |
| 2010 | 459.115 |
| 2011 | 460.0509 |
| 2012 | 458.4236 |
| 2013 | 459.84 |
| 2014 | 461.34 |
| 2015 | 461.12 |
| 2016 | 462 |
| 2017 | 460 |
| 2018 | 459 |