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The trend in the age-pattern of recent fertility (based on the number of living children under age five) is exactly that of a population practicing what demographers identify as parity-specific control.
38) In the index of recent fertility that is based on the number of own-children under age five, the women with the least education (four or fewer years) actually had lower fertility than those with some high school or college education.
More than a fourth of women aged 55 and older who did not go to high school had attended nine or more years compared to 18 per cent of similarly educated women under age 25.
The implied total marital fertility based on the number of own-children under age five is substantially lower than the CEB index for four reasons.
Recent studies have shown that a Third Ager is more likely to purchase online than someone under age 29.