| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 52.53 | 94 |
| 2015 | 52.58 | 94 |
| 2014 | 52.62 | 95 |
| 2013 | 52.99 | 93 |
| 2012 | 52.89 | 92 |
| 2011 | 52.73 | 95 |
| 2010 | 52.51 | 92 |
| 2009 | 51.68 | 97 |
| 2008 | 53.07 | 89 |
| 2007 | 52.39 | 91 |
| 2006 | 53.61 | 84 |
| 2005 | 53.47 | 83 |
| 2004 | 51.56 | 92 |
| 2003 | 49.61 | 105 |
| 2002 | 47.63 | 114 |
| 2001 | 47.01 | 117 |
| 2000 | 46.46 | 117 |
| 1999 | 46.75 | 114 |
| 1998 | 46.8 | 114 |
| 1997 | 46.95 | 113 |
| 1996 | 46.89 | 111 |
| 1995 | 44.82 | 116 |
| 1994 | 44.05 | 120 |
| 1993 | 43.2 | 122 |
| 1992 | 43.56 | 119 |
| 1991 | 44.01 | 114 |
| 1990 | 38.57 | 132 |