| 年度 | 实际值 |
|---|---|
| 1992 | 308 |
| 1993 | 313 |
| 1994 | 316 |
| 1995 | 323 |
| 1996 | 327 |
| 1997 | 332 |
| 1998 | 339 |
| 1999 | 341 |
| 2000 | 347 |
| 2001 | 351 |
| 2002 | 354 |
| 2003 | 188.68 |
| 2004 | 190.42 |
| 2005 | 191.58 |
| 2006 | 193.65 |
| 2007 | 194.72 |
| 2008 | 196 |
| 2009 | |
| 2010 | 200.19 |
| 2011 | 201.32 |
| 2012 | 200.19 |
| 2013 | 200.22 |
| 2014 | 203.23 |
| 2015 | 205.41 |