| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 37.39 | 139 |
| 2015 | 41.87 | 163 |
| 2014 | 48.08 | 162 |
| 2013 | 48.64 | 165 |
| 2012 | 49.58 | 163 |
| 2011 | 50.18 | 167 |
| 2010 | 46.7 | 167 |
| 2009 | 45.51 | 167 |
| 2008 | 58.56 | 148 |
| 2007 | 54.83 | 159 |
| 2006 | 56.66 | 149 |
| 2005 | 63.99 | 137 |
| 2004 | 59.76 | 140 |
| 2003 | 53.62 | 145 |
| 2002 | 59.08 | 136 |
| 2001 | 69.79 | 103 |
| 2000 | 71.44 | 100 |
| 1999 | 62.94 | 108 |
| 1998 | 96.19 | 50 |
| 1997 | 55.99 | 122 |
| 1996 | 52.26 | 126 |
| 1995 | 53.96 | 126 |
| 1994 | 51.88 | 116 |
| 1993 | 50.52 | 115 |
| 1992 | 56.46 | 98 |
| 1991 | 54.36 | 97 |
| 1990 | 52.61 | 101 |
| 1989 | 48.51 | 94 |
| 1988 | 46.33 | 90 |
| 1987 | 46.33 | 91 |
| 1986 | 40.03 | 102 |