| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 55.394 | 89 |
| 2015 | 54.182 | 116 |
| 2014 | 50.18 | 133 |
| 2013 | 48.709 | 138 |
| 2012 | 48.471 | 138 |
| 2011 | 48.584 | 135 |
| 2010 | 49.856 | 132 |
| 2009 | 49.926 | 128 |
| 2008 | 48.174 | 129 |
| 2007 | 50.734 | 120 |
| 2006 | 51.042 | 117 |
| 2005 | 53.594 | 110 |
| 2004 | 53.651 | 111 |
| 2003 | 55.19 | 100 |
| 2002 | 55.806 | 99 |
| 2001 | 55.606 | 98 |
| 2000 | 55.2 | 97 |
| 1999 | 56.246 | 84 |
| 1998 | 54.965 | 89 |
| 1997 | 52.209 | 95 |
| 1996 | 51.346 | 90 |
| 1995 | 50.003 | 102 |
| 1994 | 51.299 | 72 |
| 1993 | 51.438 | 69 |
| 1992 | 50.415 | 66 |
| 1991 | 49.259 | 65 |
| 1990 | 48.494 | 67 |
| 1989 | 48.976 | 55 |
| 1988 | 48.854 | 57 |
| 1987 | 49.286 | 60 |
| 1986 | 46.541 | 64 |