| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 45.03 | 114 |
| 2015 | 44.93 | 113 |
| 2014 | 44.54 | 113 |
| 2013 | 44.48 | 111 |
| 2012 | 46.87 | 93 |
| 2011 | 47.62 | 86 |
| 2010 | 47.04 | 90 |
| 2009 | 47.4 | 90 |
| 2008 | 48.27 | 86 |
| 2007 | 48.95 | 83 |
| 2006 | 49.59 | 76 |
| 2005 | 49.24 | 73 |
| 2004 | 48.66 | 75 |
| 2003 | 48.39 | 71 |
| 2002 | 47.42 | 80 |
| 2001 | 50.88 | 68 |
| 2000 | 51.47 | 62 |
| 1999 | 51.59 | 61 |
| 1998 | 50.71 | 61 |
| 1997 | 52.05 | 56 |
| 1996 | 51.93 | 58 |
| 1995 | 52.12 | 55 |
| 1994 | 52.24 | 52 |
| 1993 | 52.35 | 52 |
| 1992 | 52.46 | 50 |
| 1991 | 52.59 | 48 |