Chad [Chad]
- min:
- 4.613
- max:
- 4.796
- avg:
- 4.7
- σ:
- 0.043
| Period | Value |
|---|
| 1973 | 4.786201477050781 |
| 1974 | 4.7912092208862305 |
| 1975 | 4.7960662841796875 |
| 1976 | 4.774724006652832 |
| 1977 | 4.759897232055664 |
| 1978 | 4.75811767578125 |
| 1979 | 4.664886474609375 |
| 1980 | 4.650442600250244 |
| 1981 | 4.628914833068848 |
| 1982 | 4.6370062828063965 |
| 1983 | 4.677431106567383 |
| 1984 | 4.6900529861450195 |
| 1985 | 4.6999921798706055 |
| 1986 | 4.7217841148376465 |
| 1987 | 4.723906993865967 |
| 1988 | 4.732628345489502 |
| 1989 | 4.733999252319336 |
| 1990 | 4.720808506011963 |
| 1991 | 4.732151985168457 |
| 1992 | 4.724399089813232 |
| 1993 | 4.724357604980469 |
| 1994 | 4.726288795471191 |
| 1995 | 4.729534149169922 |
| 1996 | 4.712486743927002 |
| 1997 | 4.716183662414551 |
| 1998 | 4.705709934234619 |
| 1999 | 4.690836429595947 |
| 2000 | 4.661991119384766 |
| 2001 | 4.669137477874756 |
| 2002 | 4.6133503913879395 |
| 2003 | 4.633239269256592 |
| 2004 | 4.68260383605957 |
| 2005 | 4.701560974121094 |
| 2006 | 4.682628631591797 |
| 2007 | 4.674887657165527 |
| 2008 | 4.6737589836120605 |
| 2009 | 4.654103755950928 |
| 2010 | 4.682159900665283 |
| 2011 | 4.665088176727295 |
| 2012 | 4.674413681030273 |
| 2013 | 4.684017658233643 |
| 2014 | 4.686695098876953 |
| 2015 | 4.68301248550415 |
| 2016 | 4.675920009613037 |