| 年度 | 实际值 |
|---|---|
| 1992 | 160.47 |
| 1993 | 161.41 |
| 1994 | 162.11 |
| 1995 | 164.11 |
| 1996 | 165.77 |
| 1997 | 167.01 |
| 1998 | 169.18 |
| 1999 | 170.64 |
| 2000 | 172.14 |
| 2001 | 173.57 |
| 2002 | 175.39 |
| 2003 | 176.81 |
| 2004 | 178.83 |
| 2005 | 180.5 |
| 2006 | 181.82 |
| 2007 | 183.09 |
| 2008 | 183.97 |
| 2009 | |
| 2010 | 184.87 |
| 2011 | 186 |
| 2012 | 185.5 |
| 2013 | 187 |
| 2014 | |
| 2015 | 190.62 |
| 2016 | 193 |
| 2017 | 195 |
| 2018 | 197 |