| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 53.1 | 155 |
| 2015 | 53.22 | 154 |
| 2014 | 53.45 | 154 |
| 2013 | 53.84 | 152 |
| 2012 | 54.08 | 147 |
| 2011 | 53.73 | 151 |
| 2010 | 54.27 | 148 |
| 2009 | 54.1 | 150 |
| 2008 | 53.91 | 151 |
| 2007 | 53.69 | 152 |
| 2006 | 53.44 | 152 |
| 2005 | 53.16 | 153 |
| 2004 | 52.78 | 151 |
| 2003 | 52.41 | 154 |
| 2002 | 52.03 | 156 |
| 2001 | 51.72 | 157 |
| 2000 | 51.43 | 162 |
| 1999 | 50.99 | 164 |
| 1998 | 50.55 | 167 |
| 1997 | 50.13 | 169 |
| 1996 | 49.72 | 170 |
| 1995 | 49.31 | 169 |
| 1994 | 48.97 | 172 |
| 1993 | 48.64 | 172 |
| 1992 | 48.35 | 173 |
| 1991 | 48.14 | 174 |
| 1990 | 48.05 | 175 |