Chad [Chad]
- min:
- 4.575
- max:
- 4.839
- avg:
- 4.7
- σ:
- 0.062
| Period | Value |
|---|
| 1973 | 4.824601650238037 |
| 1974 | 4.831845760345459 |
| 1975 | 4.838871002197266 |
| 1976 | 4.807999610900879 |
| 1977 | 4.786552906036377 |
| 1978 | 4.783979415893555 |
| 1979 | 4.6491217613220215 |
| 1980 | 4.628229141235352 |
| 1981 | 4.597089767456055 |
| 1982 | 4.60879373550415 |
| 1983 | 4.667267322540283 |
| 1984 | 4.685524940490723 |
| 1985 | 4.699901580810547 |
| 1986 | 4.731423377990723 |
| 1987 | 4.734493732452393 |
| 1988 | 4.747109413146973 |
| 1989 | 4.749092102050781 |
| 1990 | 4.7300124168396 |
| 1991 | 4.746419906616211 |
| 1992 | 4.735206127166748 |
| 1993 | 4.7351460456848145 |
| 1994 | 4.737939357757568 |
| 1995 | 4.74263334274292 |
| 1996 | 4.71797513961792 |
| 1997 | 4.72332239151001 |
| 1998 | 4.708172798156738 |
| 1999 | 4.6866583824157715 |
| 2000 | 4.644933700561523 |
| 2001 | 4.655270576477051 |
| 2002 | 4.574575901031494 |
| 2003 | 4.603344917297363 |
| 2004 | 4.674749851226807 |
| 2005 | 4.702171325683594 |
| 2006 | 4.674785614013672 |
| 2007 | 4.663588523864746 |
| 2008 | 4.661955833435059 |
| 2009 | 4.6335248947143555 |
| 2010 | 4.674107551574707 |
| 2011 | 4.649413585662842 |
| 2012 | 4.66290283203125 |
| 2013 | 4.676794528961182 |
| 2014 | 4.680667400360107 |
| 2015 | 4.6753411293029785 |
| 2016 | 4.665081977844238 |