| 年份 | 美国老年人(65岁及以上)占总人口比重 | 日本老年人(65岁及以上)占总人口比重 |
|---|---|---|
| 2021 | 16.68% | 29.79% |
| 2020 | 16.22% | 29.58% |
| 2019 | 15.79% | 29.28% |
| 2018 | 15.40% | 28.90% |
| 2017 | 15.07% | 28.46% |
| 2016 | 14.67% | 27.95% |
| 2015 | 14.33% | 27.33% |
| 2014 | 14.14% | 26.53% |
| 2013 | 13.89% | 25.58% |
| 2012 | 13.58% | 24.65% |
| 2011 | 13.27% | 23.98% |
| 2010 | 13.03% | 23.60% |
| 2009 | 12.86% | 23.17% |
| 2008 | 12.67% | 22.58% |
| 2007 | 12.51% | 21.94% |
| 2006 | 12.42% | 21.26% |
| 2005 | 12.36% | 20.60% |
| 2004 | 12.30% | 20.06% |
| 2003 | 12.28% | 19.57% |
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| 2002 | 12.29% | 19.02% |
| 2001 | 12.30% | 18.42% |
| 2000 | 12.32% | 17.80% |
| 1999 | 12.40% | 17.22% |
| 1998 | 12.46% | 16.66% |
| 1997 | 12.51% | 16.08% |
| 1996 | 12.55% | 15.51% |
| 1995 | 12.54% | 14.96% |
| 1994 | 12.48% | 14.44% |
| 1993 | 12.43% | 13.92% |
| 1992 | 12.40% | 13.41% |
| 1991 | 12.33% | 12.90% |
| 1990 | 12.28% | 12.40% |
| 1989 | 12.27% | 11.94% |
| 1988 | 12.15% | 11.54% |
| 1987 | 12.00% | 11.18% |
| 1986 | 11.92% | 10.86% |
| 1985 | 11.81% | 10.54% |
| 1984 | 11.66% | 10.26% |
| 1983 | 11.55% | 10.04% |
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| 1982 | 11.48% | 9.80% |
| 1981 | 11.38% | 9.55% |
| 1980 | 11.28% | 9.30% |
| 1979 | 11.17% | 9.04% |
| 1978 | 11.04% | 8.78% |
| 1977 | 10.86% | 8.53% |
| 1976 | 10.65% | 8.28% |
| 1975 | 10.45% | 8.07% |
| 1974 | 10.27% | 7.86% |
| 1973 | 10.11% | 7.67% |
| 1972 | 9.98% | 7.48% |
| 1971 | 9.88% | 7.32% |
| 1970 | 9.80% | 7.20% |
| 1969 | 9.74% | 7.08% |
| 1968 | 9.71% | 6.94% |
| 1967 | 9.65% | 6.78% |
| 1966 | 9.58% | 6.59% |
| 1965 | 9.55% | 6.42% |
| 1964 | 9.52% | 6.29% |
| 1963 | 9.45% | 6.15% |
| 1962 | 9.38% | 6.02% |
| 1961 | 9.31% | 5.91% |
| 1960 | 9.23% | 5.80% |
| 1959 | 9.08% | 5.54% |