The line graph showed comparisons of changes in fertility rates in two different countries, China and the US, from 1920 to 2000.
Overall, the birth rates of both nations decreased significantly over the past 80 years. Despite both trends experiencing a general decline similarly, China’s birth rate was consistently lower than that of the US.
In the US, the period from 1920 to 1940 experienced constant fluctuations, although it consistently remained above 10%. However, a decade later, this figure dropped significantly and reached the nadir of nearly 5%. Throughout the 1950s, this figure increased substantially to 15%, reaching the highest point over the eight-decade period. Over the remaining period, there was a steady decline in the US birth rates, decreasing to around 7% in 2000
The period between 1920 and 2000 showed a sharper variation of birth rates in China than in the US. There was a decline from 5% in 1940 to 1945, after which the figure reached its highest at 20% in 1950. In stark contrast, the next five years recorded a dive in birth rates by over 10% and fell to 2% in 2000