| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 50.02 | 121 |
| 2015 | 53.34 | 142 |
| 2014 | 52.26 | 151 |
| 2013 | 48.15 | 166 |
| 2012 | 43.66 | 174 |
| 2011 | 41.83 | 179 |
| 2010 | 45.98 | 170 |
| 2009 | 47.08 | 162 |
| 2008 | 46.04 | 172 |
| 2007 | 44.58 | 172 |
| 2006 | 44.76 | 170 |
| 2005 | 44.06 | 168 |
| 2004 | 46.15 | 165 |
| 2003 | 44.25 | 166 |
| 2002 | 46.23 | 157 |
| 2001 | 55.8 | 137 |
| 2000 | 55.71 | 132 |
| 1999 | 52.57 | 126 |
| 1998 | 56.71 | 115 |
| 1997 | 64.04 | 105 |
| 1996 | 58.46 | 111 |
| 1995 | 59.49 | 113 |
| 1994 | 50.43 | 124 |
| 1993 | 47.19 | 124 |
| 1992 | 41.7 | 129 |
| 1991 | 34.68 | 144 |
| 1990 | 32.19 | 145 |
| 1989 | 33.35 | 127 |
| 1988 | 33.83 | 122 |
| 1987 | 32.72 | 120 |
| 1986 | 31.97 | 118 |