The line graph illustrates the average weekly income of adults aged 21 to 60 in 2002, divided into three categories: those with higher degrees, first degrees, and other qualifications.
Overall, earnings for all groups rise in early and middle adulthood before falling later in life. However, people with higher degrees consistently earn more than the other two groups at every age.
At the start of the period, those with higher and first degrees earn slightly above £600 per week, compared to less than £500 for people with other qualifications. From 26 to 35, incomes for all three groups grow gradually. The increase becomes sharper between ages 36 and 45, when wages for degree holders reach their peak, at just over £1,000 for higher degrees and slightly lower for first degrees. People with other qualifications, however, achieve their maximum earlier, at 36-40, when their income reaches around £800 per week.
After these peaks, earnings for people with other qualifications steadily decline and remain at about £700. By contrast, those with higher degrees experience a further rise, reaching their highest point at ages 56 to 60.
