| 年度 | 实际值 |
|---|---|
| 1992 | 38.47 |
| 1993 | 39.77 |
| 1994 | 154.44 |
| 1995 | 155.89 |
| 1996 | 157.54 |
| 1997 | 159.63 |
| 1998 | 161.37 |
| 1999 | 162.7 |
| 2000 | 164.91 |
| 2001 | 166.4 |
| 2002 | 167.57 |
| 2003 | 168.45 |
| 2004 | 168.38 |
| 2005 | 172.58 |
| 2006 | 176.42 |
| 2007 | 179.66 |
| 2008 | 182.22 |
| 2009 | |
| 2010 | 185.32 |
| 2011 | 191 |
| 2012 | 194.2 |
| 2013 | 186 |
| 2014 | 186.9 |
| 2015 | 188.19 |
| 2016 | 189 |
| 2017 | 190 |
| 2018 | 203 |