Chad [Chad]
- min:
- 4.465
- max:
- 4.726
- avg:
- 4.635
- σ:
- 0.059
| Period | Value |
|---|
| 1980 | 4.59566068649292 |
| 1981 | 4.585751533508301 |
| 1982 | 4.6013712882995605 |
| 1983 | 4.646580219268799 |
| 1984 | 4.671024322509766 |
| 1985 | 4.686049938201904 |
| 1986 | 4.704445838928223 |
| 1987 | 4.7107834815979 |
| 1988 | 4.7185444831848145 |
| 1989 | 4.7260661125183105 |
| 1990 | 4.712152481079102 |
| 1991 | 4.7173261642456055 |
| 1992 | 4.7010498046875 |
| 1993 | 4.6849446296691895 |
| 1994 | 4.6715593338012695 |
| 1995 | 4.68739128112793 |
| 1996 | 4.663549423217773 |
| 1997 | 4.65856409072876 |
| 1998 | 4.647977828979492 |
| 1999 | 4.606350421905518 |
| 2000 | 4.561846733093262 |
| 2001 | 4.560621738433838 |
| 2002 | 4.4651713371276855 |
| 2003 | 4.499480724334717 |
| 2004 | 4.592533588409424 |
| 2005 | 4.628410816192627 |
| 2006 | 4.6222968101501465 |
| 2007 | 4.632589817047119 |
| 2008 | 4.636375427246094 |
| 2009 | 4.5724077224731445 |
| 2010 | 4.620766639709473 |
| 2011 | 4.612585544586182 |
| 2012 | 4.62148380279541 |
| 2013 | 4.625000476837158 |
| 2014 | 4.622501850128174 |
| 2015 | 4.6017656326293945 |