The graph below compares changes in the birth rates of China and the USA between 1920 and 2000 Summarise the information by selecting and reporting the main features and make comparisons where relevant Write at least 150 words

The line graph illustrate to change the rate of live birth in the USA and China from 1920 to 2000.
Overall, the birth rate of both nation dropped gradually. Although the two trend are similar, birth rate of American are higher than that of China in the most of year.
Between 1920 and 1935, there was an unchanged and always remained above 10% in the birth rate of USA. However, the period of 1945 saw a significant fell in the American birth rate. In 1950s, the figure for USA increased dramatically around 15%, which was the highest during alternation time.
Over the same year, the birth rate in China significantly varied from 1920 to 1960 and reached a peak of 20% in 1950, which was the highest of the whole line graph.
By contrast, 40 years later, birth rate of both nation declined continuously, even the figure for China only fell below 5%.