| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 36.88 | 142 |
| 2015 | 39.13 | 145 |
| 2014 | 38.99 | 160 |
| 2013 | 38.69 | 161 |
| 2012 | 39.85 | 162 |
| 2011 | 41.63 | 165 |
| 2010 | 42.58 | 146 |
| 2009 | 40.5 | 147 |
| 2008 | 45.97 | 150 |
| 2007 | 44.46 | 151 |
| 2006 | 47.26 | 141 |
| 2005 | 48.33 | 134 |
| 2004 | 47.48 | 130 |
| 2003 | 49.26 | 117 |
| 2002 | 48.76 | 114 |
| 2001 | 50.77 | 107 |
| 2000 | 57.84 | 88 |
| 1999 | 58.8 | 81 |
| 1998 | 49.05 | 102 |
| 1997 | 39.99 | 132 |
| 1996 | 40.19 | 130 |
| 1995 | 35.91 | 146 |
| 1994 | 29.88 | 156 |