The pie charts compare the qualifications of staff in an advertising company in 1990 and 2010. The data includes six types of qualifications: PhD in science and art, Master’s in science and art, and first degree in science and art.
Overall, it is evident that the proportion of workers who had a first degree in art and science declined substantially, whereas the percentage of people who had a PhD degree in science and art witnessed a significant growth. Additionally, the proportion of staff who had a master’s degree in art climbed modestly, whereas the percentage of people with a master’s degree in science stayed consistent in both years.
In detail, the proportion of staff with a first degree in art and science dropped from 15% to 2% and 20% to 11%, respectively. Conversely, the proportion of staff with a master’s degree in art exhibited a modest rise from 21% in 1990 to 23% in 2010. Meanwhile, this rate for people with a master’s degree in science stayed at relatively the same level at 29%.
In contrast, significant growth was recorded for the proportion of people who had a PhD degree in science; it increased considerably by 18% from 12% to 30% over the years. However, the percentage of people who had a PhD degree in the art field grew slightly by 3% from 2% to 5%.