| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 124.07 | 23 |
| 2015 | 128.07 | 22 |
| 2014 | 130.97 | 26 |
| 2013 | 129.71 | 30 |
| 2012 | 124.78 | 39 |
| 2011 | 117.76 | 46 |
| 2010 | 103.21 | 61 |
| 2009 | 93.12 | 64 |
| 2008 | 124.27 | 43 |
| 2007 | 122.61 | 41 |
| 2006 | 111.29 | 50 |
| 2005 | 99.87 | 62 |
| 2004 | 93.29 | 71 |
| 2003 | 79.28 | 90 |
| 2002 | 75.47 | 99 |
| 2001 | 79.35 | 86 |
| 2000 | 78.32 | 88 |
| 1999 | 90.96 | 60 |
| 1998 | 79.15 | 84 |
| 1997 | 87.39 | 68 |
| 1996 | 104.37 | 37 |
| 1995 | 101.83 | 38 |
| 1994 | 90.72 | 52 |
| 1993 | 84.04 | 52 |
| 1992 | 100.05 | 43 |
| 1991 | 82.68 | 47 |
| 1990 | 69.85 | 70 |
| 1989 | 94.58 | 39 |
| 1988 | 91.46 | 37 |
| 1987 | 83.41 | 46 |
| 1986 | 83.5 | 46 |