Chad [Chad]
- min:
- 4.494
- max:
- 4.71
- avg:
- 4.636
- σ:
- 0.049
| Period | Value |
|---|
| 1980 | 4.604994297027588 |
| 1981 | 4.598987579345703 |
| 1982 | 4.611846446990967 |
| 1983 | 4.646861553192139 |
| 1984 | 4.6670026779174805 |
| 1985 | 4.679088115692139 |
| 1986 | 4.69270658493042 |
| 1987 | 4.698105812072754 |
| 1988 | 4.703887462615967 |
| 1989 | 4.710415840148926 |
| 1990 | 4.699833869934082 |
| 1991 | 4.702993869781494 |
| 1992 | 4.689511775970459 |
| 1993 | 4.675197601318359 |
| 1994 | 4.663047790527344 |
| 1995 | 4.676750659942627 |
| 1996 | 4.6577677726745605 |
| 1997 | 4.652831554412842 |
| 1998 | 4.644757270812988 |
| 1999 | 4.609584331512451 |
| 2000 | 4.573676586151123 |
| 2001 | 4.5716400146484375 |
| 2002 | 4.493866920471191 |
| 2003 | 4.521839141845703 |
| 2004 | 4.598287105560303 |
| 2005 | 4.627760887145996 |
| 2006 | 4.624792575836182 |
| 2007 | 4.634971618652344 |
| 2008 | 4.6384992599487305 |
| 2009 | 4.584066390991211 |
| 2010 | 4.623496055603027 |
| 2011 | 4.618428707122803 |
| 2012 | 4.625133991241455 |
| 2013 | 4.627006530761719 |
| 2014 | 4.624423503875732 |
| 2015 | 4.606428146362305 |