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Line 18:
Line 18: − ></blockquote> +
clean up
1964 - 4,027,000 births per year <BR>
1964 - 4,027,000 births per year <BR>
1974 - 3,160,000 births per year <BR>
1974 - 3,160,000 births per year <BR>
</blockquote>
===Easterlin Models===
===Easterlin Models===