| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 49.22 | 169 |
| 2015 | 48.82 | 170 |
| 2014 | 48.43 | 171 |
| 2013 | 48.24 | 171 |
| 2012 | 48.07 | 171 |
| 2011 | 47.91 | 170 |
| 2010 | 47.76 | 172 |
| 2009 | 50.02 | 163 |
| 2008 | 52.29 | 160 |
| 2007 | 54.56 | 146 |
| 2006 | 56.83 | 133 |
| 2005 | 59.08 | 122 |
| 2004 | 59.24 | 121 |
| 2003 | 59.42 | 118 |
| 2002 | 59.63 | 116 |
| 2001 | 59.86 | 114 |
| 2000 | 60.11 | 112 |
| 1999 | 60.33 | 111 |
| 1998 | 60.58 | 109 |
| 1997 | 60.85 | 103 |
| 1996 | 61.14 | 100 |
| 1995 | 61.44 | 99 |
| 1994 | 61.76 | 96 |
| 1993 | 62.08 | 93 |
| 1992 | 62.22 | 90 |
| 1991 | 62.22 | 92 |
| 1990 | 62.43 | 93 |