| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 49.1 | 118 |
| 2015 | 49.14 | 116 |
| 2014 | 49.21 | 116 |
| 2013 | 48.83 | 117 |
| 2012 | 48.8 | 116 |
| 2011 | 48.4 | 115 |
| 2010 | 48.28 | 116 |
| 2009 | 47.39 | 119 |
| 2008 | 46.73 | 123 |
| 2007 | 46.33 | 126 |
| 2006 | 46.57 | 127 |
| 2005 | 47.47 | 118 |
| 2004 | 47.57 | 117 |
| 2003 | 47.82 | 113 |
| 2002 | 48.13 | 112 |
| 2001 | 49.03 | 108 |
| 2000 | 49.14 | 100 |
| 1999 | 48.73 | 101 |
| 1998 | 49.49 | 95 |
| 1997 | 49.82 | 92 |
| 1996 | 50.55 | 89 |
| 1995 | 51.14 | 85 |
| 1994 | 52.42 | 80 |
| 1993 | 53.18 | 76 |
| 1992 | 53.69 | 72 |
| 1991 | 54.44 | 70 |
| 1990 | 55.26 | 66 |