Japan [Japan]
- min:
- 4.169
- max:
- 4.696
- avg:
- 4.489
- σ:
- 0.154
| Period | Value |
|---|
| 1973 | 4.569741249084473 |
| 1974 | 4.529816150665283 |
| 1975 | 4.55070686340332 |
| 1976 | 4.567472457885742 |
| 1977 | 4.586731910705566 |
| 1978 | 4.603071212768555 |
| 1979 | 4.607955455780029 |
| 1980 | 4.6228179931640625 |
| 1981 | 4.6152167320251465 |
| 1982 | 4.616117000579834 |
| 1983 | 4.596607208251953 |
| 1984 | 4.56947135925293 |
| 1985 | 4.571532726287842 |
| 1986 | 4.617573261260986 |
| 1987 | 4.630619049072266 |
| 1988 | 4.671675205230713 |
| 1989 | 4.696403980255127 |
| 1990 | 4.591864109039307 |
| 1991 | 4.628822326660156 |
| 1992 | 4.60613489151001 |
| 1993 | 4.610595226287842 |
| 1994 | 4.602838516235352 |
| 1995 | 4.59478759765625 |
| 1996 | 4.580506324768066 |
| 1997 | 4.565029144287109 |
| 1998 | 4.563272476196289 |
| 1999 | 4.53108024597168 |
| 2000 | 4.505632400512695 |
| 2001 | 4.491589546203613 |
| 2002 | 4.464553356170654 |
| 2003 | 4.445550441741943 |
| 2004 | 4.41642951965332 |
| 2005 | 4.382087230682373 |
| 2006 | 4.351712703704834 |
| 2007 | 4.330248832702637 |
| 2008 | 4.301362991333008 |
| 2009 | 4.286728382110596 |
| 2010 | 4.27957010269165 |
| 2011 | 4.227753162384033 |
| 2012 | 4.2142653465271 |
| 2013 | 4.200928688049316 |
| 2014 | 4.1895365715026855 |
| 2015 | 4.178201198577881 |
| 2016 | 4.168768882751465 |