| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 55.676 | 86 |
| 2015 | 55.117 | 110 |
| 2014 | 53.959 | 113 |
| 2013 | 53.695 | 116 |
| 2012 | 52.717 | 117 |
| 2011 | 51.319 | 121 |
| 2010 | 52.11 | 119 |
| 2009 | 52.317 | 120 |
| 2008 | 47.115 | 136 |
| 2007 | 47.798 | 131 |
| 2006 | 45.294 | 140 |
| 2005 | 45.811 | 131 |
| 2004 | 42.199 | 141 |
| 2003 | 44.115 | 134 |
| 2002 | 45.899 | 126 |
| 2001 | 45.785 | 129 |
| 2000 | 43.081 | 132 |
| 1999 | 42.698 | 128 |
| 1998 | 42.811 | 130 |
| 1997 | 44.325 | 117 |
| 1996 | 44.792 | 114 |
| 1995 | 45.648 | 112 |
| 1994 | 46.297 | 93 |
| 1993 | 46.128 | 90 |
| 1992 | 44.283 | 88 |
| 1991 | 43.538 | 86 |
| 1990 | 42.585 | 85 |
| 1989 | 42.114 | 74 |
| 1988 | 41.572 | 79 |
| 1987 | 41.512 | 78 |
| 1986 | 40.582 | 81 |