Chad [Chad]
- min:
- 4.468
- max:
- 4.956
- avg:
- 4.7
- σ:
- 0.115
| Period | Value |
|---|
| 1973 | 4.930045127868652 |
| 1974 | 4.943459510803223 |
| 1975 | 4.9564995765686035 |
| 1976 | 4.899316310882568 |
| 1977 | 4.859570503234863 |
| 1978 | 4.854745864868164 |
| 1979 | 4.605055332183838 |
| 1980 | 4.566617965698242 |
| 1981 | 4.508981227874756 |
| 1982 | 4.5306549072265625 |
| 1983 | 4.63899040222168 |
| 1984 | 4.672835826873779 |
| 1985 | 4.699449062347412 |
| 1986 | 4.758050918579102 |
| 1987 | 4.763828277587891 |
| 1988 | 4.787208557128906 |
| 1989 | 4.790899276733398 |
| 1990 | 4.755843639373779 |
| 1991 | 4.7863240242004395 |
| 1992 | 4.76557731628418 |
| 1993 | 4.765556335449219 |
| 1994 | 4.770814418792725 |
| 1995 | 4.779570579528809 |
| 1996 | 4.734004974365234 |
| 1997 | 4.743872165679932 |
| 1998 | 4.715785026550293 |
| 1999 | 4.675858497619629 |
| 2000 | 4.598513603210449 |
| 2001 | 4.617621421813965 |
| 2002 | 4.4681291580200195 |
| 2003 | 4.521411418914795 |
| 2004 | 4.6536149978637695 |
| 2005 | 4.704352855682373 |
| 2006 | 4.653655052185059 |
| 2007 | 4.6329121589660645 |
| 2008 | 4.629912376403809 |
| 2009 | 4.577236652374268 |
| 2010 | 4.6524176597595215 |
| 2011 | 4.606662273406982 |
| 2012 | 4.63162899017334 |
| 2013 | 4.657336235046387 |
| 2014 | 4.664486885070801 |
| 2015 | 4.654616355895996 |
| 2016 | 4.635619163513184 |