| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 65.29 | 138 |
| 2015 | 63.95 | 136 |
| 2014 | 62.38 | 130 |
| 2013 | 60.71 | 128 |
| 2012 | 59.02 | 121 |
| 2011 | 57.39 | 116 |
| 2010 | 55.89 | 110 |
| 2009 | 54.49 | 103 |
| 2008 | 53.26 | 96 |
| 2007 | 52.17 | 87 |
| 2006 | 51.21 | 77 |
| 2005 | 50.34 | 67 |
| 2004 | 49.42 | 54 |
| 2003 | 48.63 | 44 |
| 2002 | 47.92 | 41 |
| 2001 | 47.25 | 32 |
| 2000 | 46.56 | 22 |
| 1999 | 45.95 | 15 |
| 1998 | 45.38 | 10 |
| 1997 | 44.84 | 8 |
| 1996 | 44.36 | 8 |
| 1995 | 43.97 | 8 |
| 1994 | 43.69 | 6 |
| 1993 | 43.45 | 6 |
| 1992 | 43.3 | 5 |
| 1991 | 43.32 | 5 |
| 1990 | 43.56 | 4 |
| 1989 | 43.95 | 4 |
| 1988 | 44.62 | 6 |
| 1987 | 45.42 | 9 |
| 1986 | 46.11 | 10 |