| 年度 | 实际值 |
|---|---|
| 1992 | 51.26 |
| 1993 | 53.19 |
| 1994 | 54.85 |
| 1995 | 56.13 |
| 1996 | 58.98 |
| 1997 | 61.35 |
| 1998 | 62.47 |
| 1999 | 64 |
| 2000 | 64.96 |
| 2001 | 64.662 |
| 2002 | 65.382 |
| 2003 | 65.8272 |
| 2004 | 66.0278 |
| 2005 | 66.6079 |
| 2006 | 67.5438 |
| 2007 | 68.3008 |
| 2008 | 68.9114 |
| 2009 | 69.4834 |
| 2010 | 69.48 |
| 2011 | 70.6 |
| 2012 | 71.1 |
| 2013 | 205.1 |
| 2014 | 208.2 |
| 2015 | 209.31 |
| 2016 | 209 |
| 2017 | 210 |
| 2018 | 212 |