| 年份 | 日本 |
|---|---|
| 2023 | - |
| 2022 | 2.53159 |
| 2021 | 2.39162 |
| 2020 | 2.29012 |
| 2019 | 2.66139 |
| 2018 | 2.61989 |
| 2017 | 2.48931 |
| 2016 | 2.49674 |
| 2015 | 2.53996 |
| 2014 | 2.49499 |
| 2013 | 2.42543 |
| 2012 | 2.47622 |
| 2011 | 2.52371 |
| 2010 | 2.51433 |
| 2009 | 2.51507 |
| 2008 | 2.66176 |
| 2007 | 2.67184 |
| 2006 | 2.73164 |
| 2005 | 2.73547 |
| 2004 | 2.75135 |
| 2003 | 2.6829 |
| 2002 | 2.65699 |
| 2001 | 2.64725 |
| 2000 | 2.5479 |
| 1999 | 2.61529 |
| 1998 | 2.39047 |
| 1997 | 2.73421 |
| 1996 | 2.64622 |
| 1995 | 2.69706 |
| 1994 | 2.76337 |
| 1993 | 2.83624 |
| 1992 | 2.98526 |
| 1991 | 3.06742 |
| 1990 | 3.06864 |
| 1989 | 3.08125 |
| 1988 | 3.01965 |
| 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 | - |