The given three pie charts represent degrees granted in four different subjects at the National University over the 30 years (1990,2000, and 2010).
Overall, it is immediately apparent that the proportion of computer science represented the highest share throughout the period, whereas business showed a downward trend.
Beginning at 30% in 1990, computer science experienced a slight increase, rising from 40% in 2000 to 45% in 2010. Similarly, starting at 25%, medicine exhibited a gradual decline, before falling from 30% to 25% between 2000 and 2010.
On the other hand, having started at 30% in 1990, business declined gradually from 20% in 2000 to 15% in 2010. Meanwhile, law, which was the lowest proportion, witnessed a minimal decrease from 15% to 10% between 1990 and 2000, after which it returned to its initial level of 15% toward the end of the period.
