Chad [Chad]
- min:
- 4.612
- max:
- 4.798
- avg:
- 4.7
- σ:
- 0.044
| Period | Value |
|---|
| 1973 | 4.788015842437744 |
| 1974 | 4.7931294441223145 |
| 1975 | 4.798088550567627 |
| 1976 | 4.776296138763428 |
| 1977 | 4.7611565589904785 |
| 1978 | 4.759339809417725 |
| 1979 | 4.664141654968262 |
| 1980 | 4.649393558502197 |
| 1981 | 4.627411365509033 |
| 1982 | 4.635673522949219 |
| 1983 | 4.676950931549072 |
| 1984 | 4.6898393630981445 |
| 1985 | 4.699987888336182 |
| 1986 | 4.722239971160889 |
| 1987 | 4.724407196044922 |
| 1988 | 4.733312606811523 |
| 1989 | 4.73471212387085 |
| 1990 | 4.721243858337402 |
| 1991 | 4.732826232910156 |
| 1992 | 4.724909782409668 |
| 1993 | 4.724867820739746 |
| 1994 | 4.726839542388916 |
| 1995 | 4.7301530838012695 |
| 1996 | 4.712746620178223 |
| 1997 | 4.716521263122559 |
| 1998 | 4.705826759338379 |
| 1999 | 4.690639495849609 |
| 2000 | 4.661185264587402 |
| 2001 | 4.668482303619385 |
| 2002 | 4.611518859863281 |
| 2003 | 4.631827354431152 |
| 2004 | 4.682232856750488 |
| 2005 | 4.701590061187744 |
| 2006 | 4.682258129119873 |
| 2007 | 4.674354076385498 |
| 2008 | 4.673201560974121 |
| 2009 | 4.65313196182251 |
| 2010 | 4.681779384613037 |
| 2011 | 4.664348125457764 |
| 2012 | 4.673870086669922 |
| 2013 | 4.683676242828369 |
| 2014 | 4.686410427093506 |
| 2015 | 4.682650089263916 |
| 2016 | 4.675408363342285 |