| 年份 | 日本 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | 0.378513 |
| 2019 | 0.378011 |
| 2018 | 0.381872 |
| 2017 | 0.388248 |
| 2016 | 0.391319 |
| 2015 | 0.39327 |
| 2014 | 0.393792 |
| 2013 | 0.395021 |
| 2012 | 0.396527 |
| 2011 | 0.395189 |
| 2010 | 0.393138 |
| 2009 | 0.391811 |
| 2008 | 0.362672 |
| 2007 | 0.361776 |
| 2006 | 0.377346 |
| 2005 | 0.408001 |
| 2004 | 0.377 |
| 2003 | 0.377187 |
| 2002 | 0.375844 |
| 2001 | 0.372785 |
| 2000 | 0.366719 |
| 1999 | 0.374206 |
| 1998 | 0.373535 |
| 1997 | 0.362983 |
| 1996 | 0.365919 |
| 1995 | 0.374552 |
| 1994 | 0.348132 |
| 1993 | 0.36317 |
| 1992 | 0.365207 |
| 1991 | 0.382196 |
| 1990 | 0.389462 |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | - |
| 1980 | - |
| 1979 | - |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |