| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 49.29 | 80 |
| 2015 | 49.8 | 78 |
| 2014 | 50.35 | 77 |
| 2013 | 50.51 | 75 |
| 2012 | 51.22 | 70 |
| 2011 | 51.47 | 69 |
| 2010 | 50.09 | 72 |
| 2009 | 49.58 | 76 |
| 2008 | 48.69 | 83 |
| 2007 | 47.16 | 92 |
| 2006 | 45.04 | 99 |
| 2005 | 44.46 | 101 |
| 2004 | 42.38 | 112 |
| 2003 | 41.52 | 116 |
| 2002 | 41.21 | 114 |
| 2001 | 43.08 | 105 |
| 2000 | 43.18 | 103 |
| 1999 | 44.02 | 97 |
| 1998 | 44.62 | 89 |
| 1997 | 43.4 | 96 |
| 1996 | 43.31 | 97 |
| 1995 | 42.89 | 99 |
| 1994 | 42.38 | 102 |
| 1993 | 41.62 | 103 |
| 1992 | 41.7 | 101 |
| 1991 | 40.08 | 106 |