| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 84.54 | 30 |
| 2015 | 84.02 | 34 |
| 2014 | 84.93 | 27 |
| 2013 | 158.18 | 6 |
| 2012 | 155.45 | 6 |
| 2011 | 155.05 | 6 |
| 2010 | 148.82 | 7 |
| 2009 | 154.28 | 7 |
| 2008 | 153.38 | 6 |
| 2007 | 142.8 | 6 |
| 2006 | 96.94 | 20 |
| 2005 | 97.36 | 21 |
| 2004 | 93.45 | 25 |
| 2003 | 91.63 | 22 |
| 2002 | 92.26 | 21 |
| 2001 | 86.68 | 21 |
| 2000 | 81.3 | 17 |
| 1999 | 83.73 | 17 |
| 1998 | 79.88 | 19 |
| 1997 | 74.38 | 22 |
| 1996 | 72.97 | 23 |
| 1995 | 67.95 | 25 |
| 1994 | 74.77 | 17 |
| 1993 | 72.32 | 20 |
| 1992 | 68.4 | 23 |
| 1991 | 64.86 | 24 |
| 1990 | 70.21 | 17 |
| 1989 | 72.79 | 18 |
| 1988 | 73.23 | 18 |
| 1987 | 74.31 | 16 |
| 1986 | 74.76 | 15 |