The chart shows birth rate in the USA and China in 1920 to 2000.

A glance at the graph provided reveals a number of striking similarities between the Chinese and US childbirth percentage during the period from 1920 to 2000. It is evident that both nations saw considerable fluctuations in fertility, with lows during the 1940s and highs during the 1950s. Increasing from approximately 10 proportion in 1920 to 15 bonus in 1935, China's delivery then plunged to a low of merely 5 fee in the 1940s. This was followed by a period of exponential growth, with fertility in the country reaching a peak of 20 bonus in 1950. The latter half of the century, however, brought a decline in this figure. The US creation estimate, meanwhile, fluctuated at somewhere between 11 and 13 proportion prior to 1940, previously dropping sharply to less than 5 bonus in 1945. The following 5 years saw a rapid climb in this standard, to somewhere in the vicinity of 15 chunk in 1950, followed by a steady fall. It is interesting to note that while the beginning quota of both countries were comparable until 1950, the gap between the two widened after this time as fertility in China slid away.