Tonga [Tonga]
- min:
- 4.22
- max:
- 4.59
- avg:
- 4.471
- σ:
- 0.081
| Period | Value |
|---|
| 1980 | 4.2200703620910645 |
| 1981 | 4.273444652557373 |
| 1982 | 4.35530424118042 |
| 1983 | 4.405821800231934 |
| 1984 | 4.54990291595459 |
| 1985 | 4.569432258605957 |
| 1986 | 4.555253028869629 |
| 1987 | 4.555980682373047 |
| 1988 | 4.543484687805176 |
| 1989 | 4.534120559692383 |
| 1990 | 4.545355796813965 |
| 1991 | 4.590188980102539 |
| 1992 | 4.568382263183594 |
| 1993 | 4.564640998840332 |
| 1994 | 4.543631553649902 |
| 1995 | 4.504009246826172 |
| 1996 | 4.517043590545654 |
| 1997 | 4.490062713623047 |
| 1998 | 4.478949546813965 |
| 1999 | 4.440681457519531 |
| 2000 | 4.40558385848999 |
| 2001 | 4.4136528968811035 |
| 2002 | 4.375267505645752 |
| 2003 | 4.433228492736816 |
| 2004 | 4.448855876922607 |
| 2005 | 4.440946578979492 |
| 2006 | 4.42093563079834 |
| 2007 | 4.4196343421936035 |
| 2008 | 4.408308982849121 |
| 2009 | 4.453094959259033 |
| 2010 | 4.487909317016602 |
| 2011 | 4.504779815673828 |
| 2012 | 4.511716842651367 |
| 2013 | 4.489724159240723 |
| 2014 | 4.494694709777832 |
| 2015 | 4.470158576965332 |
| 2016 | 4.451404094696045 |