| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 36.19 | 18 |
| 2015 | 38.89 | 17 |
| 2014 | 45.56 | 13 |
| 2013 | 47.81 | 15 |
| 2012 | 51.26 | 12 |
| 2011 | 52.71 | 12 |
| 2010 | 53.85 | 13 |
| 2009 | 51.6 | 11 |
| 2008 | 62.31 | 11 |
| 2007 | 61.16 | 11 |
| 2006 | 62.5 | 9 |
| 2005 | 61.34 | 9 |
| 2004 | 56.39 | 8 |
| 2003 | 55.05 | 6 |
| 2002 | 53.66 | 6 |
| 2001 | 53.97 | 6 |
| 2000 | 58.15 | 6 |
| 1999 | 48.77 | 5 |
| 1998 | 46.15 | 5 |
| 1997 | 52.31 | 5 |
| 1996 | 51.23 | 7 |
| 1995 | 50.4 | 5 |
| 1994 | 48.96 | 5 |
| 1993 | 48.64 | 8 |
| 1992 | 49.72 | 10 |
| 1991 | 53.16 | 6 |
| 1990 | 48.17 | 13 |
| 1989 | 45.53 | 10 |
| 1988 | 45.29 | 12 |
| 1987 | 46.42 | 9 |
| 1986 | 48.11 | 9 |