The figure given shows that the birth rates of China and the usa between 1920 and 2000. Clearly, both rates fluctuated dramatically during the period

The figure given shows that the birth rates of China and the USA between 1920 and 2000. Clearly, both rates fluctuated dramatically during the period.

China`s birth rate rose from around 10 percent in the 1920 to 15 percent in 1935.Then it fell sharply to around 5 percent in both 1940 and 1945. It increased rapidly to a peak of 20 percent in 1950. After this is fell dramatically to less than 10 percent in 1955.Finally,it decrease steadily to about 2 percent in 1980 and remained at this level until 2000.

Meanwhile, the US birth rate fluctuated around 12 percent from 1920 to 1940. It decreased dramatically