South Africa [South_Africa]
- min:
- 4.294
- max:
- 5.663
- avg:
- 4.948
- σ:
- 0.432
| Period | Value |
|---|
| 1973 | 5.655793190002441 |
| 1974 | 5.66281270980835 |
| 1975 | 5.568798542022705 |
| 1976 | 5.4852294921875 |
| 1977 | 5.385600566864014 |
| 1978 | 5.385162830352783 |
| 1979 | 5.389230251312256 |
| 1980 | 5.5140814781188965 |
| 1981 | 5.557309627532959 |
| 1982 | 5.539793968200684 |
| 1983 | 5.49355936050415 |
| 1984 | 5.460683345794678 |
| 1985 | 5.338647365570068 |
| 1986 | 5.323009490966797 |
| 1987 | 5.359803199768066 |
| 1988 | 5.345151424407959 |
| 1989 | 5.266373157501221 |
| 1990 | 5.038345813751221 |
| 1991 | 4.971762657165527 |
| 1992 | 4.868789196014404 |
| 1993 | 4.838110446929932 |
| 1994 | 4.7864460945129395 |
| 1995 | 4.784880638122559 |
| 1996 | 4.760250568389893 |
| 1997 | 4.731023788452148 |
| 1998 | 4.730320930480957 |
| 1999 | 4.644792079925537 |
| 2000 | 4.643139839172363 |
| 2001 | 4.616481781005859 |
| 2002 | 4.656649112701416 |
| 2003 | 4.635563850402832 |
| 2004 | 4.602656841278076 |
| 2005 | 4.571302890777588 |
| 2006 | 4.585547924041748 |
| 2007 | 4.551039695739746 |
| 2008 | 4.591794967651367 |
| 2009 | 4.525744438171387 |
| 2010 | 4.457677364349365 |
| 2011 | 4.476386070251465 |
| 2012 | 4.433971405029297 |
| 2013 | 4.428188323974609 |
| 2014 | 4.390499114990234 |
| 2015 | 4.348268032073975 |
| 2016 | 4.293689250946045 |