| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 46.67 | 105 |
| 2015 | 47.03 | 99 |
| 2014 | 47.45 | 92 |
| 2013 | 47.62 | 87 |
| 2012 | 46.35 | 96 |
| 2011 | 44 | 111 |
| 2010 | 44.77 | 105 |
| 2009 | 45.11 | 104 |
| 2008 | 44.9 | 104 |
| 2007 | 43.34 | 114 |
| 2006 | 41.12 | 123 |
| 2005 | 41.56 | 117 |
| 2004 | 39.36 | 127 |
| 2003 | 38.41 | 127 |
| 2002 | 37.75 | 132 |
| 2001 | 37.1 | 130 |
| 2000 | 37.05 | 130 |
| 1999 | 36.86 | 132 |
| 1998 | 35.36 | 137 |
| 1997 | 35.72 | 131 |
| 1996 | 34.49 | 136 |
| 1995 | 34.17 | 134 |
| 1994 | 32.91 | 141 |
| 1993 | 32.24 | 139 |
| 1992 | 31.2 | 143 |
| 1991 | 30.19 | 148 |