| 年度 | 实际值 |
|---|---|
| 1992 | 326.7 |
| 1993 | 333.13 |
| 1994 | 340.18 |
| 1995 | 345.03 |
| 1996 | 348.26 |
| 1997 | 351.33 |
| 1998 | 354.53 |
| 1999 | 355.8 |
| 2000 | 357.99 |
| 2001 | 360.32 |
| 2002 | 362.25 |
| 2003 | 363.76 |
| 2004 | 365.09 |
| 2005 | 367.27 |
| 2006 | 371.97 |
| 2007 | 380.19 |
| 2008 | 383.24 |
| 2009 | |
| 2010 | 391.03 |
| 2011 | 394.2 |
| 2012 | 394.8 |
| 2013 | 396 |
| 2014 | |
| 2015 | 407.77 |
| 2016 | 413 |
| 2017 | 418 |
| 2018 | 423 |