The graph below compares changes in the birth rates of china and the USA between 1920 and 2000.

A glance at the graph provided reveals the birth rates between

China

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and the

USA

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from 1920 to 2000.It is evident that both nations saw considerable fluctuations during

this

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period.

It is clear that

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birth rates in

China

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and the

USA

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had a constant decline from 1950 to 2000,

by contrast

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,the gap which started in 1940 increased dramatically until 1950.The

figure

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for

China

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and the

USA

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had fluctuations before 1950. Increasing from approximately 10 per

cent

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in 1920 to 15 per

cent

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in 1935,the

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for

China

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then

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dropped rapidly to about 5 per

cent

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in 1940.

This

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was followed by a period of exponential growth that reached a peak of 20 per

cent

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in 1950,as twice as in 1920.The latter 50 years,

however

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,brought a sustained decrease in

this

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figure

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. Meanwhile,the

USA

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birth rate fluctuated at around 12 per

cent

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from 1920 to 1940,before dropping sharply to 5 per

cent

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in 1945.The following 5 years saw a rapid climb in

this

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figure

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,at the top of 15 per

cent

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,

then

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, followed by a steady fall.