| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 137 | 8 |
| 2015 | 127.48 | 13 |
| 2014 | 131.24 | 10 |
| 2013 | 131.01 | 11 |
| 2012 | 131.55 | 11 |
| 2011 | 127.9 | 13 |
| 2010 | 125.05 | 12 |
| 2009 | 132.64 | 12 |
| 2008 | 122.59 | 12 |
| 2007 | 109.7 | 17 |
| 2006 | 111.73 | 14 |
| 2005 | 103.64 | 17 |
| 2004 | 107.24 | 16 |
| 2003 | 115.29 | 11 |
| 2002 | 109.52 | 13 |
| 2001 | 113.09 | 11 |
| 2000 | 103.44 | 11 |
| 1999 | 119.3 | 9 |
| 1998 | 112.09 | 8 |
| 1997 | 83 | 12 |
| 1996 | 82.36 | 13 |
| 1995 | 81.85 | 13 |
| 1994 | 83.4 | 12 |
| 1993 | 83.82 | 13 |
| 1992 | 89.13 | 12 |
| 1991 | 88.52 | 10 |
| 1990 | 87.71 | 8 |
| 1989 | 84.19 | 10 |
| 1988 | 78.88 | 13 |
| 1987 | 81.51 | 11 |
| 1986 | 75.77 | 14 |