Chad [Chad]
- min:
- 4.451
- max:
- 4.73
- avg:
- 4.636
- σ:
- 0.064
| Period | Value |
|---|
| 1980 | 4.610960006713867 |
| 1981 | 4.615566730499268 |
| 1982 | 4.6314897537231445 |
| 1983 | 4.662346363067627 |
| 1984 | 4.687313079833984 |
| 1985 | 4.700695514678955 |
| 1986 | 4.708521366119385 |
| 1987 | 4.716050148010254 |
| 1988 | 4.719752788543701 |
| 1989 | 4.7296905517578125 |
| 1990 | 4.72095251083374 |
| 1991 | 4.7184882164001465 |
| 1992 | 4.701292037963867 |
| 1993 | 4.677456378936768 |
| 1994 | 4.655887126922607 |
| 1995 | 4.67648983001709 |
| 1996 | 4.656424045562744 |
| 1997 | 4.6457014083862305 |
| 1998 | 4.639372825622559 |
| 1999 | 4.590911865234375 |
| 2000 | 4.550711631774902 |
| 2001 | 4.542475700378418 |
| 2002 | 4.450836658477783 |
| 2003 | 4.4839186668396 |
| 2004 | 4.577733993530273 |
| 2005 | 4.613962650299072 |
| 2006 | 4.621870517730713 |
| 2007 | 4.644083023071289 |
| 2008 | 4.65071964263916 |
| 2009 | 4.573411464691162 |
| 2010 | 4.620025634765625 |
| 2011 | 4.6231842041015625 |
| 2012 | 4.628023624420166 |
| 2013 | 4.6246256828308105 |
| 2014 | 4.6185102462768555 |
| 2015 | 4.591039657592773 |