| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 54.12 | 149 |
| 2015 | 54.16 | 149 |
| 2014 | 54.13 | 149 |
| 2013 | 53.84 | 151 |
| 2012 | 53.06 | 154 |
| 2011 | 52.53 | 156 |
| 2010 | 53.33 | 155 |
| 2009 | 54.29 | 149 |
| 2008 | 55.06 | 144 |
| 2007 | 53.69 | 153 |
| 2006 | 52.21 | 158 |
| 2005 | 50.24 | 163 |
| 2004 | 50.94 | 163 |
| 2003 | 50.15 | 166 |
| 2002 | 51.05 | 163 |
| 2001 | 51.55 | 160 |
| 2000 | 49.82 | 169 |
| 1999 | 50.88 | 166 |
| 1998 | 51.86 | 157 |
| 1997 | 52.78 | 154 |
| 1996 | 53.73 | 153 |
| 1995 | 54.66 | 150 |
| 1994 | 55.63 | 144 |
| 1993 | 56.59 | 138 |
| 1992 | 57.53 | 130 |
| 1991 | 58.13 | 128 |
| 1990 | 58.78 | 121 |