| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 38.23 | 180 |
| 2015 | 37.9 | 180 |
| 2014 | 37.46 | 180 |
| 2013 | 37.54 | 179 |
| 2012 | 37.57 | 179 |
| 2011 | 38.92 | 172 |
| 2010 | 39.03 | 174 |
| 2009 | 42.38 | 166 |
| 2008 | 44.73 | 162 |
| 2007 | 42.81 | 166 |
| 2006 | 47.58 | 148 |
| 2005 | 47.02 | 151 |
| 2004 | 49.5 | 137 |
| 2003 | 49.64 | 136 |
| 2002 | 49.54 | 141 |
| 2001 | 50.78 | 133 |
| 2000 | 51.47 | 130 |
| 1999 | 50.15 | 137 |
| 1998 | 50.73 | 135 |
| 1997 | 51.2 | 131 |
| 1996 | 53.99 | 111 |
| 1995 | 54.11 | 112 |
| 1994 | 54.72 | 107 |
| 1993 | 57.21 | 87 |
| 1992 | 57.1 | 88 |
| 1991 | 58.22 | 79 |