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0.84, va Lues for ago-groups be Ir.w 30 may be taken to be 0.83,<br />

whilo those above 30 may ba assumed to be 0.8475.<br />

c a age-specific ir dox of induced abortion. Since the<br />

overall index = 0.9849, valuas for the younger ages can be assumed<br />

to start from 0.97, rising slowly wi th age and going up to one.<br />

B i<br />

ASFR i =-for each age group .... (4.4]<br />

AWRlA<br />

1000<br />

COR =------- " . (4B5<br />

P<br />

TFR = 5 _ ASFR . . . . .(4 .6 )<br />

Based on experimentation, select those sets of relative<br />

vaLues of age-speci fic natural fertility rates which yield CBR<br />

close to the commonly accepted value of 42.[1,<br />

and TFR close to tha<br />

commonly accepted value of 6.3.<br />

The results can be summarized in<br />

the following form:­

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