| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 56.76 | 137 |
| 2015 | 56.85 | 137 |
| 2014 | 56.93 | 136 |
| 2013 | 56.56 | 137 |
| 2012 | 56.47 | 137 |
| 2011 | 56.13 | 138 |
| 2010 | 55.96 | 138 |
| 2009 | 55.24 | 144 |
| 2008 | 54.53 | 149 |
| 2007 | 53.92 | 149 |
| 2006 | 54.06 | 149 |
| 2005 | 54.65 | 144 |
| 2004 | 54.47 | 145 |
| 2003 | 54.56 | 146 |
| 2002 | 54.84 | 146 |
| 2001 | 55.75 | 142 |
| 2000 | 55.92 | 142 |
| 1999 | 55.65 | 143 |
| 1998 | 56.73 | 137 |
| 1997 | 57.22 | 136 |
| 1996 | 57.82 | 134 |
| 1995 | 58.5 | 131 |
| 1994 | 59.72 | 117 |
| 1993 | 60.84 | 104 |
| 1992 | 61.44 | 99 |
| 1991 | 62.38 | 91 |
| 1990 | 63.38 | 87 |