| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 51.01 | 174 |
| 2015 | 49.53 | 177 |
| 2014 | 49.23 | 175 |
| 2013 | 47.58 | 178 |
| 2012 | 49.26 | 175 |
| 2011 | 51.23 | 175 |
| 2010 | 52.65 | 172 |
| 2009 | 55.09 | 170 |
| 2008 | 56.48 | 171 |
| 2007 | 55.74 | 173 |
| 2006 | 54.11 | 173 |
| 2005 | 54.08 | 172 |
| 2004 | 54.24 | 171 |
| 2003 | 53.24 | 174 |
| 2002 | 52.7 | 176 |
| 2001 | 52.54 | 174 |
| 2000 | 53.36 | 177 |
| 1999 | 55.39 | 174 |
| 1998 | 57.28 | 168 |
| 1997 | 58.79 | 163 |
| 1996 | 59.31 | 160 |
| 1995 | 59.71 | 162 |
| 1994 | 60.29 | 154 |
| 1993 | 61.73 | 147 |
| 1992 | 61.61 | 151 |
| 1991 | 61.32 | 158 |