| 年度 | 实际值 |
|---|---|
| 1992 | 361.61 |
| 1993 | 363.4 |
| 1994 | 365.17 |
| 1995 | 368.12 |
| 1996 | 370.3 |
| 1997 | 372.07 |
| 1998 | 373.72 |
| 1999 | 375.75 |
| 2000 | 379.3 |
| 2001 | 379.25 |
| 2002 | 380.07 |
| 2003 | 380.59 |
| 2004 | 380.97 |
| 2005 | 382.41 |
| 2006 | 383.8 |
| 2007 | 385.31 |
| 2008 | 387.37 |
| 2009 | |
| 2010 | 389.15 |
| 2011 | 390.5 |
| 2012 | 391.5 |
| 2013 | 392 |
| 2014 | |
| 2015 | 389.99 |
| 2016 | 392 |
| 2017 | 388 |
| 2018 | 387 |