| 年份 | 日本 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 81.47 |
| 2020 | 81.56 |
| 2019 | 81.41 |
| 2018 | 81.25 |
| 2017 | 81.09 |
| 2016 | 80.98 |
| 2015 | 80.75 |
| 2014 | 80.5 |
| 2013 | 80.21 |
| 2012 | 79.94 |
| 2011 | 79.44 |
| 2010 | 79.55 |
| 2009 | 79.59 |
| 2008 | 79.29 |
| 2007 | 79.19 |
| 2006 | 79 |
| 2005 | 78.56 |
| 2004 | 78.64 |
| 2003 | 78.36 |
| 2002 | 78.32 |
| 2001 | 78.07 |
| 2000 | 77.72 |
| 1999 | 77.1 |
| 1998 | 77.16 |
| 1997 | 77.19 |
| 1996 | 77.01 |
| 1995 | 76.38 |
| 1994 | 76.57 |
| 1993 | 76.25 |
| 1992 | 76.09 |
| 1991 | 76.11 |
| 1990 | 75.92 |
| 1989 | 75.91 |
| 1988 | 75.54 |
| 1987 | 75.61 |
| 1986 | 75.23 |
| 1985 | 74.78 |
| 1984 | 74.54 |
| 1983 | 74.2 |
| 1982 | 74.22 |
| 1981 | 73.79 |
| 1980 | 73.35 |
| 1979 | 73.46 |
| 1978 | 72.97 |
| 1977 | 72.69 |
| 1976 | 72.15 |
| 1975 | 71.73 |
| 1974 | 71.16 |
| 1973 | 70.7 |
| 1972 | 70.5 |
| 1971 | 70.17 |
| 1970 | 69.31 |
| 1969 | 69.18 |
| 1968 | 69.05 |
| 1967 | 68.91 |
| 1966 | 68.35 |
| 1965 | 67.74 |
| 1964 | 67.67 |
| 1963 | 67.21 |
| 1962 | 66.23 |
| 1961 | 66.03 |
| 1960 | 65.32 |