Tonga [Tonga]
- min:
- 3.983
- max:
- 4.6
- avg:
- 4.475
- σ:
- 0.134
| Period | Value |
|---|
| 1980 | 3.9826087951660156 |
| 1981 | 4.089348316192627 |
| 1982 | 4.189153671264648 |
| 1983 | 4.222448348999023 |
| 1984 | 4.408358097076416 |
| 1985 | 4.451834678649902 |
| 1986 | 4.490787506103516 |
| 1987 | 4.492948055267334 |
| 1988 | 4.466455936431885 |
| 1989 | 4.474156856536865 |
| 1990 | 4.462486267089844 |
| 1991 | 4.517001628875732 |
| 1992 | 4.49015474319458 |
| 1993 | 4.486090183258057 |
| 1994 | 4.48895263671875 |
| 1995 | 4.506400108337402 |
| 1996 | 4.503325462341309 |
| 1997 | 4.480533123016357 |
| 1998 | 4.497187614440918 |
| 1999 | 4.4922709465026855 |
| 2000 | 4.551815509796143 |
| 2001 | 4.570898056030273 |
| 2002 | 4.578616619110107 |
| 2003 | 4.5888895988464355 |
| 2004 | 4.600090980529785 |
| 2005 | 4.587325572967529 |
| 2006 | 4.559426784515381 |
| 2007 | 4.5475640296936035 |
| 2008 | 4.579892635345459 |
| 2009 | 4.590271949768066 |
| 2010 | 4.510489463806152 |
| 2011 | 4.516563415527344 |
| 2012 | 4.519144058227539 |
| 2013 | 4.510972499847412 |
| 2014 | 4.5157976150512695 |
| 2015 | 4.5278425216674805 |
| 2016 | 4.532926082611084 |