| 年度 | 实际值 |
|---|---|
| 1992 | 44.07 |
| 1993 | 45.72 |
| 1994 | 46.83 |
| 1995 | 48.1 |
| 1996 | 49.32 |
| 1997 | 50.48 |
| 1998 | 51.6 |
| 1999 | 52.45 |
| 2000 | 53.21 |
| 2001 | 54.23 |
| 2002 | 55.58 |
| 2003 | 56.83 |
| 2004 | 57.74 |
| 2005 | 58.36 |
| 2006 | 59.2 |
| 2007 | 59.39 |
| 2008 | 59.45 |
| 2009 | |
| 2010 | 63.44 |
| 2011 | 60.5 |
| 2012 | 60.8 |
| 2013 | 60.9 |
| 2014 | 121 |
| 2015 | 122.02 |
| 2016 | 124 |
| 2017 | 124 |
| 2018 | 125 |