Japan [Japan]
- min:
- 4.407
- max:
- 4.612
- avg:
- 4.508
- σ:
- 0.056
| Period | Value |
|---|
| 1973 | 4.4391655921936035 |
| 1974 | 4.407233238220215 |
| 1975 | 4.429162979125977 |
| 1976 | 4.435753345489502 |
| 1977 | 4.450357437133789 |
| 1978 | 4.46804141998291 |
| 1979 | 4.475685119628906 |
| 1980 | 4.477789878845215 |
| 1981 | 4.467554569244385 |
| 1982 | 4.472264766693115 |
| 1983 | 4.450734615325928 |
| 1984 | 4.42875337600708 |
| 1985 | 4.434257507324219 |
| 1986 | 4.46705436706543 |
| 1987 | 4.477627754211426 |
| 1988 | 4.512862205505371 |
| 1989 | 4.530484199523926 |
| 1990 | 4.536269187927246 |
| 1991 | 4.57121467590332 |
| 1992 | 4.563272953033447 |
| 1993 | 4.574440002441406 |
| 1994 | 4.5675458908081055 |
| 1995 | 4.611800193786621 |
| 1996 | 4.596157073974609 |
| 1997 | 4.580658912658691 |
| 1998 | 4.568508148193359 |
| 1999 | 4.543389320373535 |
| 2000 | 4.594468593597412 |
| 2001 | 4.583623886108398 |
| 2002 | 4.563686370849609 |
| 2003 | 4.553855895996094 |
| 2004 | 4.5322771072387695 |
| 2005 | 4.575382709503174 |
| 2006 | 4.548401355743408 |
| 2007 | 4.52971076965332 |
| 2008 | 4.504411220550537 |
| 2009 | 4.49251651763916 |
| 2010 | 4.532121181488037 |
| 2011 | 4.4829912185668945 |
| 2012 | 4.470648765563965 |
| 2013 | 4.459311485290527 |
| 2014 | 4.449684143066406 |
| 2015 | 4.4643354415893555 |
| 2016 | 4.454705715179443 |