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

and the

USA

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

this

period.

It is clear that

birth rates in

China

and the

USA

had a constant decline from 1950 to 2000,

by contrast

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

figure

for

China

and the

USA

had fluctuations before 1950. Increasing from approximately 10 per

cent

in 1920 to 15 per

cent

in 1935,the

figure

for

China

then

dropped rapidly to about 5 per

cent

in 1940.

This

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

cent

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

however

,brought a sustained decrease in

this

figure

. Meanwhile,the

USA

birth rate fluctuated at around 12 per

cent

from 1920 to 1940,before dropping sharply to 5 per

cent

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

this

figure

,at the top of 15 per

cent

,

then

, followed by a steady fall.