| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 30.05 | 155 |
| 2015 | 34.03 | 162 |
| 2014 | 39.79 | 157 |
| 2013 | 40.46 | 157 |
| 2012 | 41.59 | 159 |
| 2011 | 42.66 | 160 |
| 2010 | 38.86 | 158 |
| 2009 | 39.56 | 152 |
| 2008 | 52.36 | 133 |
| 2007 | 48.84 | 139 |
| 2006 | 50.52 | 136 |
| 2005 | 56.92 | 111 |
| 2004 | 48.92 | 124 |
| 2003 | 45.28 | 128 |
| 2002 | 49.83 | 109 |
| 2001 | 59.14 | 81 |
| 2000 | 66.05 | 69 |
| 1999 | 60.4 | 78 |
| 1998 | 89.74 | 25 |
| 1997 | 49.87 | 108 |
| 1996 | 40.79 | 127 |
| 1995 | 42.57 | 127 |
| 1994 | 40.72 | 116 |
| 1993 | 41.23 | 104 |
| 1992 | 47.84 | 82 |
| 1991 | 47.17 | 79 |
| 1990 | 44.76 | 88 |
| 1989 | 40.87 | 96 |
| 1988 | 38.81 | 96 |
| 1987 | 39.54 | 90 |
| 1986 | 33.51 | 104 |