| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 27.13 | 190 |
| 2015 | 26.7 | 191 |
| 2014 | 26.28 | 188 |
| 2013 | 25.87 | 188 |
| 2012 | 25.47 | 188 |
| 2011 | 25.07 | 188 |
| 2010 | 24.69 | 188 |
| 2009 | 24.31 | 187 |
| 2008 | 23.95 | 188 |
| 2007 | 23.59 | 187 |
| 2006 | 23.24 | 187 |
| 2005 | 22.9 | 189 |
| 2004 | 22.56 | 189 |
| 2003 | 22.24 | 191 |
| 2002 | 21.92 | 192 |
| 2001 | 21.6 | 193 |
| 2000 | 21.28 | 193 |
| 1999 | 20.97 | 193 |
| 1998 | 20.66 | 192 |
| 1997 | 20.36 | 192 |
| 1996 | 20.06 | 192 |
| 1995 | 19.76 | 192 |
| 1994 | 19.46 | 192 |
| 1993 | 19.17 | 191 |
| 1992 | 18.88 | 191 |
| 1991 | 18.6 | 191 |
| 1990 | 18.32 | 192 |
| 1989 | 18.04 | 190 |
| 1988 | 17.76 | 190 |
| 1987 | 17.49 | 190 |
| 1986 | 17.22 | 190 |