| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 47.32 | 96 |
| 2015 | 46.73 | 102 |
| 2014 | 46.03 | 107 |
| 2013 | 45.23 | 109 |
| 2012 | 46.17 | 100 |
| 2011 | 47.47 | 87 |
| 2010 | 49.17 | 79 |
| 2009 | 49.99 | 74 |
| 2008 | 50.96 | 77 |
| 2007 | 50.73 | 71 |
| 2006 | 50.71 | 69 |
| 2005 | 50.62 | 66 |
| 2004 | 50.62 | 65 |
| 2003 | 50.6 | 65 |
| 2002 | 51.25 | 65 |
| 2001 | 50.89 | 67 |
| 2000 | 50.3 | 67 |
| 1999 | 49.36 | 68 |
| 1998 | 48.76 | 68 |
| 1997 | 47.32 | 75 |
| 1996 | 45.79 | 88 |
| 1995 | 45.44 | 89 |
| 1994 | 45.62 | 87 |
| 1993 | 45.95 | 82 |
| 1992 | 46.38 | 81 |
| 1991 | 47.77 | 77 |