The line graph provides a comparison of birth rate in 6 different age groups in UK over a period of 35 years, from 1973 to 2008. Based on the information provided, we can see that the majority of ages saw a downward trend, over the given period. Notably, people in their late twenties maintained the highest figure, while older adults showed the lowest figure throughout the given period.
At the beginning of the period, the birth rate for women aged 25-29 was around 140 births per 1,000. This was followed by people in their early twenties which childbirth was just over 120. In contrast, people in their late thirties and older adults made up much smaller births: 40 and 20, respectively. Interestingly, the difference between women aged 30-35 and women under 20 was relatively small, suggesting that their fertility rate was almost the same.
Turning to the rest of the data, between 1993 and 2008, women aged 25-29 underwent a noticeable change, climbing to 120 births by the end of the period. In contrast, women in their early and late thirties showed a moderately increase, reaching to over 80 and just over 60, respectively. By 2008, it is evident that most of the ages presented a downward trend, except women between 30-39 years old.