The provided image displays four pie charts illustrating the distribution of employees across various sectors in Towns A and B in two distinct years, 1960 and 2010.
Overall, the data reveals significant shifts in the proportions of the workforce employed in manufacturing, sales, and services in the two towns over the specified years.
In 1960, Town A had a substantially higher percentage of workers engaged in manufacturing at 29% compared to Town B with only 10%. However, by 2010, this trend reversed as both towns experienced an increase in their manufacturing workforce, with Town A at 64% and Town B at 25%. Conversely, the sales sector saw a decline in both towns, from 41% to 70% in Town A and from 20% to 53% in Town B, respectively.
Furthermore, the services sector exhibited divergent patterns in the two towns. In Town A, the percentage of employees in the services sector decreased significantly from 30% in 1960 to 16% in 2010, marking a substantial drop. In contrast, Town B witnessed a minor rise in the services sector from 20% to 22% over the same period, showcasing a modest increase.