| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 24.63 | 147 |
| 2015 | 25.3 | 147 |
| 2014 | 25.99 | 146 |
| 2013 | 26.72 | 143 |
| 2012 | 27.47 | 142 |
| 2011 | 28.27 | 143 |
| 2010 | 29.09 | 142 |
| 2009 | 29.93 | 141 |
| 2008 | 30.78 | 140 |
| 2007 | 31.64 | 139 |
| 2006 | 32.52 | 135 |
| 2005 | 33.41 | 132 |
| 2004 | 34.31 | 130 |
| 2003 | 35.22 | 131 |
| 2002 | 36.14 | 129 |
| 2001 | 37.08 | 129 |
| 2000 | 38.02 | 128 |
| 1999 | 39.26 | 124 |
| 1998 | 40.5 | 124 |
| 1997 | 41.76 | 120 |
| 1996 | 43.03 | 120 |
| 1995 | 44.31 | 114 |
| 1994 | 45.6 | 113 |
| 1993 | 46.89 | 110 |
| 1992 | 48.19 | 106 |
| 1991 | 49.42 | 104 |
| 1990 | 50.21 | 102 |
| 1989 | 50.99 | 100 |
| 1988 | 51.77 | 100 |
| 1987 | 52.55 | 98 |
| 1986 | 53.33 | 99 |