The pie charts illustrate the qualifications of staff in an advertising company between 1990 and 2010.
Overall, the proportions of employees possessing Ph.D. degrees and Master’s in Art displayed an upward trend, whereas those who achieved First degree in Science and Art exhibited a contrasting pattern. Notably, Ph.D in Science surpassed Master’s Science, becoming the prevalent qualification among the total of qualifications.
Looking first at the qualifications with an upward trend, the portion of Master-Science, which was the leading qualification in 1990, at nearly a third. However, by 2010, Ph.D in Science surged and overtook Master-Science, becoming the most common qualification (30%), while that of Master-Science remained unchanged over the period. Additionally, the figure for Ph.D in Art (2%) and Master-Art (21%) showed a marginal increase in 2010, reaching 5% and 23%, respectively.
Regarding other degrees with a downward trend, First Degree-Science depicted a decline by half in 2010, with the figure dropping from 20% to 11%. Furthermore, there was a dramatic decrease in the percentage of First Degree-Art, falling from 15% to only 2% by the end of the period, being the least favored qualification in 2010.