| 年度 | 实际值 |
|---|---|
| 1992 | 980 |
| 1993 | 1002 |
| 1994 | 1009 |
| 1995 | 1028 |
| 1996 | 1058 |
| 1997 | 1071 |
| 1998 | 1088 |
| 1999 | 1113 |
| 2000 | 1138 |
| 2001 | 1157 |
| 2002 | 657 |
| 2003 | 340.39 |
| 2004 | 342.35 |
| 2005 | 341.74 |
| 2006 | 344.21 |
| 2007 | 345.99 |
| 2008 | 347.62 |
| 2009 | |
| 2010 | 400.75 |
| 2011 | 353.38 |
| 2012 | 353.06 |
| 2013 | 355.18 |
| 2014 | 357.39 |
| 2015 | 361.09 |