| 年份 | 美国15至64岁人口占总人口比重 | 日本15至64岁人口占总人口比重 |
|---|---|---|
| 2024 | 64.75% | 58.78% |
| 2023 | 64.97% | 58.79% |
| 2022 | 65.20% | 58.74% |
| 2021 | 65.38% | 58.73% |
| 2020 | 65.54% | 58.86% |
| 2019 | 65.72% | 59.00% |
| 2018 | 65.92% | 59.16% |
| 2017 | 66.12% | 59.41% |
| 2016 | 66.32% | 59.76% |
| 2015 | 66.50% | 60.23% |
| 2014 | 66.68% | 60.80% |
| 2013 | 66.89% | 61.50% |
| 2012 | 67.12% | 62.29% |
| 2011 | 67.33% | 63.06% |
| 2010 | 67.46% | 63.53% |
| 2009 | 67.52% | 63.78% |
| 2008 | 67.60% | 64.21% |
| 2007 | 67.67% | 64.78% |
| 2006 | 67.66% | 65.35% |
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| 2005 | 67.52% | 65.97% |
| 2004 | 67.34% | 66.54% |
| 2003 | 67.17% | 66.96% |
| 2002 | 67.00% | 67.32% |
| 2001 | 66.83% | 67.75% |
| 2000 | 66.65% | 68.18% |
| 1999 | 66.47% | 68.55% |
| 1998 | 66.28% | 68.87% |
| 1997 | 66.10% | 69.17% |
| 1996 | 65.93% | 69.47% |
| 1995 | 65.80% | 69.70% |
| 1994 | 65.73% | 69.86% |
| 1993 | 65.72% | 69.96% |
| 1992 | 65.79% | 69.98% |
| 1991 | 65.94% | 69.96% |
| 1990 | 66.12% | 69.82% |
| 1989 | 66.32% | 69.54% |
| 1988 | 66.54% | 69.15% |
| 1987 | 66.71% | 68.72% |
| 1986 | 66.80% | 68.32% |
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| 1985 | 66.77% | 67.98% |
| 1984 | 66.72% | 67.76% |
| 1983 | 66.70% | 67.60% |
| 1982 | 66.69% | 67.40% |
| 1981 | 66.64% | 67.41% |
| 1980 | 66.52% | 67.50% |
| 1979 | 66.32% | 67.50% |
| 1978 | 66.01% | 67.61% |
| 1977 | 65.62% | 67.78% |
| 1976 | 65.13% | 67.99% |
| 1975 | 64.57% | 68.23% |
| 1974 | 63.98% | 68.51% |
| 1973 | 63.36% | 68.83% |
| 1972 | 62.73% | 69.21% |
| 1971 | 62.17% | 69.54% |
| 1970 | 61.73% | 69.68% |
| 1969 | 61.35% | 69.68% |
| 1968 | 60.95% | 69.64% |
| 1967 | 60.56% | 69.52% |
| 1966 | 60.24% | 69.15% |
| 1965 | 60.04% | 68.58% |
| 1964 | 59.92% | 67.98% |
| 1963 | 59.82% | 67.11% |
| 1962 | 59.70% | 66.05% |
| 1961 | 59.66% | 65.01% |
| 1960 | 59.90% | 64.42% |
| 1959 | 60.33% | 63.37% |