Botswana [Botswana]
- min:
- 4.281
- max:
- 4.592
- avg:
- 4.491
- σ:
- 0.089
| Period | Value |
|---|
| 1980 | 4.311229705810547 |
| 1981 | 4.28102445602417 |
| 1982 | 4.2908148765563965 |
| 1983 | 4.311051845550537 |
| 1984 | 4.329336643218994 |
| 1985 | 4.3748931884765625 |
| 1986 | 4.40255880355835 |
| 1987 | 4.434657096862793 |
| 1988 | 4.4541850090026855 |
| 1989 | 4.478438377380371 |
| 1990 | 4.485355377197266 |
| 1991 | 4.506962299346924 |
| 1992 | 4.5078816413879395 |
| 1993 | 4.53200101852417 |
| 1994 | 4.536012649536133 |
| 1995 | 4.544914722442627 |
| 1996 | 4.565703868865967 |
| 1997 | 4.566566467285156 |
| 1998 | 4.583439350128174 |
| 1999 | 4.5684285163879395 |
| 2000 | 4.555128574371338 |
| 2001 | 4.592485427856445 |
| 2002 | 4.575630187988281 |
| 2003 | 4.5397562980651855 |
| 2004 | 4.535792827606201 |
| 2005 | 4.555906772613525 |
| 2006 | 4.577974319458008 |
| 2007 | 4.5771565437316895 |
| 2008 | 4.571549415588379 |
| 2009 | 4.531257152557373 |
| 2010 | 4.510461807250977 |
| 2011 | 4.499390125274658 |
| 2012 | 4.484769344329834 |
| 2013 | 4.487217903137207 |
| 2014 | 4.5007195472717285 |
| 2015 | 4.510311603546143 |