| 年份 | 日本 |
|---|---|
| 2023 | - |
| 2022 | 21.5699 |
| 2021 | 18.2016 |
| 2020 | 15.5494 |
| 2019 | 17.4635 |
| 2018 | 18.3149 |
| 2017 | 17.5914 |
| 2016 | 16.058 |
| 2015 | 17.4368 |
| 2014 | 17.4187 |
| 2013 | 15.7842 |
| 2012 | 14.4148 |
| 2011 | 14.7745 |
| 2010 | 14.9185 |
| 2009 | 12.4196 |
| 2008 | 17.2355 |
| 2007 | 17.2891 |
| 2006 | 15.6574 |
| 2005 | 13.8159 |
| 2004 | 12.7863 |
| 2003 | 11.4658 |
| 2002 | 10.8554 |
| 2001 | 10.0768 |
| 2000 | 10.4635 |
| 1999 | 9.80554 |
| 1998 | 10.3738 |
| 1997 | 10.3837 |
| 1996 | 9.31575 |
| 1995 | 8.81647 |
| 1994 | 8.83983 |
| 1993 | 8.91391 |
| 1992 | 9.51828 |
| 1991 | 9.61617 |
| 1990 | 10.0501 |
| 1989 | 9.93475 |
| 1988 | 9.40921 |
| 1987 | 9.753 |
| 1986 | 10.7008 |
| 1985 | 13.6194 |
| 1984 | 14.0998 |
| 1983 | 13.0093 |
| 1982 | 13.6298 |
| 1981 | 13.8236 |
| 1980 | 12.8482 |
| 1979 | 10.8541 |
| 1978 | 10.4336 |
| 1977 | 12.2876 |
| 1976 | 12.7207 |
| 1975 | 12.008 |
| 1974 | 12.7616 |
| 1973 | 9.41789 |
| 1972 | 9.93155 |
| 1971 | 10.9905 |
| 1970 | 10.1401 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |