| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 39.38 | 165 |
| 2015 | 38.64 | 165 |
| 2014 | 37.9 | 162 |
| 2013 | 37.14 | 162 |
| 2012 | 36.37 | 162 |
| 2011 | 35.59 | 164 |
| 2010 | 34.79 | 166 |
| 2009 | 34.01 | 166 |
| 2008 | 33.24 | 167 |
| 2007 | 32.47 | 169 |
| 2006 | 31.71 | 170 |
| 2005 | 30.97 | 170 |
| 2004 | 29.84 | 172 |
| 2003 | 28.69 | 173 |
| 2002 | 27.57 | 178 |
| 2001 | 26.48 | 180 |
| 2000 | 25.42 | 181 |
| 1999 | 24.38 | 181 |
| 1998 | 23.38 | 182 |
| 1997 | 22.4 | 187 |
| 1996 | 21.46 | 189 |
| 1995 | 20.54 | 190 |
| 1994 | 19.65 | 191 |
| 1993 | 18.79 | 192 |
| 1992 | 17.96 | 193 |
| 1991 | 17.16 | 193 |
| 1990 | 16.39 | 195 |
| 1989 | 15.65 | 194 |
| 1988 | 14.93 | 195 |
| 1987 | 14.24 | 198 |
| 1986 | 13.58 | 198 |