| 年份 | 中国儿童(14岁及以下)占总人口比重 | 美国儿童(14岁及以下)占总人口比重 |
|---|---|---|
| 2021 | 17.67% | 18.24% |
| 2020 | 18.03% | 18.51% |
| 2019 | 18.26% | 18.74% |
| 2018 | 18.39% | 18.91% |
| 2017 | 18.40% | 19.06% |
| 2016 | 18.35% | 19.17% |
| 2015 | 18.36% | 19.30% |
| 2014 | 18.36% | 19.42% |
| 2013 | 18.33% | 19.54% |
| 2012 | 18.31% | 19.64% |
| 2011 | 18.34% | 19.74% |
| 2010 | 18.45% | 19.87% |
| 2009 | 18.61% | 20.01% |
| 2008 | 18.82% | 20.14% |
| 2007 | 19.12% | 20.27% |
| 2006 | 19.54% | 20.42% |
| 2005 | 20.25% | 20.61% |
| 2004 | 21.14% | 20.82% |
| 2003 | 22.00% | 20.99% |
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| 2002 | 22.89% | 21.14% |
| 2001 | 23.78% | 21.29% |
| 2000 | 24.53% | 21.43% |
| 1999 | 25.17% | 21.53% |
| 1998 | 25.75% | 21.59% |
| 1997 | 26.38% | 21.65% |
| 1996 | 27.03% | 21.72% |
| 1995 | 27.54% | 21.80% |
| 1994 | 27.96% | 21.86% |
| 1993 | 28.29% | 21.86% |
| 1992 | 28.52% | 21.79% |
| 1991 | 28.75% | 21.68% |
| 1990 | 28.88% | 21.56% |
| 1989 | 29.03% | 21.44% |
| 1988 | 29.41% | 21.36% |
| 1987 | 29.90% | 21.32% |
| 1986 | 30.49% | 21.38% |
| 1985 | 31.32% | 21.53% |
| 1984 | 32.31% | 21.71% |
| 1983 | 33.39% | 21.88% |
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| 1982 | 34.31% | 22.05% |
| 1981 | 35.11% | 22.23% |
| 1980 | 36.13% | 22.47% |
| 1979 | 37.25% | 22.83% |
| 1978 | 38.60% | 23.29% |
| 1977 | 39.87% | 23.83% |
| 1976 | 40.35% | 24.44% |
| 1975 | 40.34% | 25.11% |
| 1974 | 40.27% | 25.78% |
| 1973 | 40.26% | 26.46% |
| 1972 | 40.51% | 27.13% |
| 1971 | 40.76% | 27.75% |
| 1970 | 40.89% | 28.28% |
| 1969 | 41.05% | 28.79% |
| 1968 | 41.14% | 29.28% |
| 1967 | 41.35% | 29.72% |
| 1966 | 41.55% | 30.25% |
| 1965 | 41.48% | 30.58% |
| 1964 | 41.24% | 30.54% |
| 1963 | 40.65% | 30.57% |
| 1962 | 40.01% | 30.75% |
| 1961 | 39.99% | 30.91% |
| 1960 | 40.34% | 30.82% |
| 1959 | 39.14% | 30.59% |