| 年度 | 实际值 |
|---|---|
| 1992 | 187 |
| 1993 | 189 |
| 1994 | 201 |
| 1995 | 207 |
| 1996 | 211 |
| 1997 | 214 |
| 1998 | 217 |
| 1999 | 220 |
| 2000 | 232.02 |
| 2001 | 227 |
| 2002 | 230 |
| 2003 | 232.58 |
| 2004 | 235.45 |
| 2005 | 238.22 |
| 2006 | 239.69 |
| 2007 | 244 |
| 2008 | 246.3 |
| 2009 | |
| 2010 | 247.24 |
| 2011 | 247.05 |
| 2012 | 245.7 |
| 2013 | 281.65 |
| 2014 | 286.31 |
| 2015 | 246.06 |