Tonga [Tonga]
- min:
- 3.64
- max:
- 4.645
- avg:
- 4.471
- σ:
- 0.221
| Period | Value |
|---|
| 1980 | 3.639949321746826 |
| 1981 | 3.8219332695007324 |
| 1982 | 3.994053363800049 |
| 1983 | 4.051304817199707 |
| 1984 | 4.366974353790283 |
| 1985 | 4.444564342498779 |
| 1986 | 4.512036323547363 |
| 1987 | 4.513948440551758 |
| 1988 | 4.468470573425293 |
| 1989 | 4.482277870178223 |
| 1990 | 4.466914176940918 |
| 1991 | 4.562762260437012 |
| 1992 | 4.515168190002441 |
| 1993 | 4.513596534729004 |
| 1994 | 4.518680095672607 |
| 1995 | 4.547186851501465 |
| 1996 | 4.536065578460693 |
| 1997 | 4.492462158203125 |
| 1998 | 4.514212608337402 |
| 1999 | 4.506750106811523 |
| 2000 | 4.501724720001221 |
| 2001 | 4.539284706115723 |
| 2002 | 4.549332141876221 |
| 2003 | 4.570060729980469 |
| 2004 | 4.58146858215332 |
| 2005 | 4.586843013763428 |
| 2006 | 4.5537238121032715 |
| 2007 | 4.53825569152832 |
| 2008 | 4.579703330993652 |
| 2009 | 4.604630470275879 |
| 2010 | 4.598292350769043 |
| 2011 | 4.607216835021973 |
| 2012 | 4.619386672973633 |
| 2013 | 4.60595703125 |
| 2014 | 4.626631259918213 |
| 2015 | 4.634241104125977 |
| 2016 | 4.644898414611816 |