The provided pie charts illustrate the academic proficiency in Science and Art of the employees of an advertising company, categorised into First Degree, Master, Ph.D, from 1990 to 2010.
From an overall perspective, Ph.D-Science witnessed the most dramatic rise, while the opposite trend was the most significant in First Degree-Art. Meanwhile, Master-Science did not experience any changes. Although Master-Science dominated the company, it was then surpassed by Ph.D-Science.
Starting with the field of Science, in 1990, Master-Science recorded a dominant share, at 29%, followed by First Degree-Science at 20%, while only 13% of employees achieving Ph.D qualifications in Science were recorded. Over the following two decades, Ph.D-Science underwent a remarkable growth up to 30%, overriding Master-Science and becoming the most prevalent degree in the company, whereas First Degree-Science followed the opposite trend declining by 9 percentage points. Meanwhile, Master-Science remained unchanged at 29% ranking second.
Moving on to the remaining field, Master-Art initially accounted for a considerable share, at 21%, 6 percentage points higher than First Degree-Art and over tenfold higher than Ph.D-Art. After twenty years, while both Master-Art and Ph.D-Art experienced a modest rise to 23% and 5%, respectively, First Degree-Art underwent the opposite dropping sharply to a minor 2%, becoming the most uncommon degree of all categories.