The pie charts compare the employees in terms of their qualifications in one advertising company between 1990 and 2010.
Overall, there were significant changes among the first degree in science, first degree in art and first degree in science, while PhD in art , master in art and master in science are somewhat bucked the chart without big changes.
In detail, the first degree in science underwent a significantly higher percentage with 20% in 1990, almost two times fewer in 2010, at 11%. As for the first degree in art, which had the smallest proportion in 2010, while in 1990, it was the fourth highest degree with 15%. In terms of first degree in science which was the highest percentage compared to others. However, it shared only 11% in 2010.
In 1990, a PhD in art had the smallest proportion, at 2%. It experienced a slight increase to 5% in 2010, in contrast it was still the smallest in 2010. Master in art there were not any big changes in the given years, 21% and 23%, in 1990 and 2010 , respectively. The master in science was the same in both years, at 29%.
