The “Second Demographic Transition” in the US: Spatial ...

1960-64 44 22 12 22. ... marriage postponement is measured via the proportion of women aged 25-29 never married as recorded in the US Census of 2000, and cohabitation as the percentage of all households headed by unrelated adults of the same or of a different sex. ... chosen the color scheme in function of the blue (Democrat) and red ... ................
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