| 年度 | 实际值 |
|---|---|
| 1992 | 45.01 |
| 1993 | 46.86 |
| 1994 | 48.24 |
| 1995 | 49.35 |
| 1996 | 50.13 |
| 1997 | 50.92 |
| 1998 | 52.13 |
| 1999 | 53.11 |
| 2000 | 53.71 |
| 2001 | 53.9079 |
| 2002 | 54.343 |
| 2003 | 54.2157 |
| 2004 | 54.5889 |
| 2005 | 54.4389 |
| 2006 | 55.0202 |
| 2007 | 55.4874 |
| 2008 | 55.6442 |
| 2009 | 64.3741 |
| 2010 | 64.37 |
| 2011 | 66.2 |
| 2012 | 65.5 |
| 2013 | 134.2 |
| 2014 | 135.4 |
| 2015 | 137.39 |
| 2016 | 142 |
| 2017 | 144 |
| 2018 | 147 |