The pie charts illustrate the percentage of staff qualifications in a specific advertising company from 1990 to 2010. Overall, the proportion of staff certification of Master – Art, Ph.D – Science, Ph.D – Art increased while the rate of the remaining groups either decreased or stayed unchanged during the period shown. Moreover, Science became more popular with staff rather than Art.
Regarding the first chart, in 1990, the highest rate of staff having qualifications was recorded for Master – Science, at about 29%, which was greater than that of Master – Art and First degree – Science, at around 20%. More staff had qualifications of First degree – Art than that of Ph.D – Science, with 15% and 12%, respectively.
Turning to the second chart, during the period of 20 years, the figure for qualifications of Ph.D increased significantly, from 12% to 30%. Likewise, there was a growth in the rate of qualifications of Master – Art between 21% and 23%. Ph.D – Art experienced a growth to 5% in 2010. However, the figure for qualifications of First degree – Art sharply fell from 15% to 2%. Additionally, First degree – Science showed a downward trend, by around 3%, while Master – Science remained unchanged, at 29%.
