| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 123.12 | 24 |
| 2015 | 126.59 | 25 |
| 2014 | 132.07 | 25 |
| 2013 | 133.34 | 25 |
| 2012 | 138.5 | 29 |
| 2011 | 139.68 | 25 |
| 2010 | 127.25 | 30 |
| 2009 | 119.27 | 27 |
| 2008 | 140.44 | 24 |
| 2007 | 129.87 | 36 |
| 2006 | 134.09 | 24 |
| 2005 | 137.85 | 21 |
| 2004 | 127.41 | 30 |
| 2003 | 116.69 | 37 |
| 2002 | 114.97 | 41 |
| 2001 | 120.27 | 33 |
| 2000 | 121.3 | 34 |
| 1999 | 100.71 | 42 |
| 1998 | 100.24 | 44 |
| 1997 | 95.05 | 51 |
| 1996 | 84.27 | 70 |
| 1995 | 89.76 | 58 |
| 1994 | 81.25 | 62 |
| 1993 | 77.75 | 64 |
| 1992 | 77.95 | 62 |
| 1991 | 78.47 | 53 |
| 1990 | 75.78 | 60 |
| 1989 | 72.41 | 58 |
| 1988 | 67.41 | 58 |
| 1987 | 57.23 | 70 |
| 1986 | 49.17 | 85 |