| 年度 | 实际值 |
|---|---|
| 1992 | 182 |
| 1993 | 184 |
| 1994 | 185 |
| 1995 | 189 |
| 1996 | 193 |
| 1997 | 197 |
| 1998 | 199 |
| 1999 | 202 |
| 2000 | 203 |
| 2001 | 205 |
| 2002 | 205 |
| 2003 | 207.61 |
| 2004 | 208.72 |
| 2005 | 209.86 |
| 2006 | 210.89 |
| 2007 | 212.27 |
| 2008 | 213.67 |
| 2009 | |
| 2010 | 215.08 |
| 2011 | 222.26 |
| 2012 | 225.96 |
| 2013 | 227.26 |
| 2014 | 222.11 |
| 2015 | 223.63 |