| 年度 | 实际值 |
|---|---|
| 1992 | 320.31 |
| 1993 | 325.1 |
| 1994 | 326.72 |
| 1995 | 334.27 |
| 1996 | 339.32 |
| 1997 | 343.4 |
| 1998 | 347.39 |
| 1999 | 350.77 |
| 2000 | 354.01 |
| 2001 | 356.21 |
| 2002 | 359.74 |
| 2003 | 362.13 |
| 2004 | 367.46 |
| 2005 | 372.01 |
| 2006 | 380.11 |
| 2007 | 386.45 |
| 2008 | 396.24 |
| 2009 | |
| 2010 | 409.83 |
| 2011 | 416.6 |
| 2012 | 421.3 |
| 2013 | 417.3 |
| 2014 | |
| 2015 | 429.01 |
| 2016 | 433 |
| 2017 | 432 |
| 2018 | 435 |