| 年度 | 实际值 |
|---|---|
| 1992 | 362 |
| 1993 | 364 |
| 1994 | 365 |
| 1995 | 369 |
| 1996 | 372 |
| 1997 | 373 |
| 1998 | 375 |
| 1999 | 377 |
| 2000 | 379 |
| 2001 | 379 |
| 2002 | 380 |
| 2003 | 382.18 |
| 2004 | 387.03 |
| 2005 | 391.63 |
| 2006 | 395.28 |
| 2007 | 399.4 |
| 2008 | 402.86 |
| 2009 | |
| 2010 | 410.79 |
| 2011 | 411.36 |
| 2012 | 412.89 |
| 2013 | 415.51 |
| 2014 | 415.89 |
| 2015 | 413.53 |