The line graph demonstrates how the British women’s birth rates changed throughout six specific age groups between 1973 and 2008. Looking from an overall perspective, there was an upward trend of childbirth across two groups (from 30 to 39 years old), while the other four groups experienced a downward trend. Remarkably, women in the 25-29 age group accounted for the majority of births of the total.
Regarding the decreasing trend, 140 fetuses were born by 25-29 aged women in 1973, but this figure decreased soon after and increased again in 1993 and remained stable until the end of the period. Considering the other three age groups (between 20-25, under 20, and over 40 years old) started with approximately 120, 60, and 20 births, respectively. Ultimately, childbirths in all three age groups mentioned above dropped sharply to nearly 90, 40, and 10, in that order.
On the other hand, childbirth among women in their 30s became popular over the surveyed time. There were around 70 births per 100 people in 1973 in the 30-35 age cohort. This figure fluctuated over the following 35 years, growing to over 80 in 2008. Older women followed similar rates of increase over the period, with the 35-39 age group climbing up steadily from 40 to around 65 childbirths per 1000 people between 1973 and 2008.