| 年度 | 实际值 |
|---|---|
| 1992 | 347.76 |
| 1993 | 351.54 |
| 1994 | 355.75 |
| 1995 | 359.79 |
| 1996 | 363.22 |
| 1997 | 368.58 |
| 1998 | 373 |
| 1999 | 377.68 |
| 2000 | 385.69 |
| 2001 | 387.13 |
| 2002 | 389.03 |
| 2003 | 389.97 |
| 2004 | 391.26 |
| 2005 | 393.44 |
| 2006 | 398.03 |
| 2007 | 403.01 |
| 2008 | 405.8 |
| 2009 | |
| 2010 | 413.47 |
| 2011 | 416.5 |
| 2012 | 405.7 |
| 2013 | 409.8 |
| 2014 | |
| 2015 | 418.51 |
| 2016 | 432 |
| 2017 | 437 |
| 2018 | 443 |