The pie charts provide information about the sales of a drug company in three specific nations over 4 years, from 2002.
Overall, the amount of money earned by selling medication generally witnessed a downward trend, while the opposite was true in the case of Asia after four years. It is also clear that the sale of a drug company in America was the largest, but this was overtaken by Asia.
Regarding the amount of money earned by selling medicine in America and Europe, despite being the leading figure, at 41%, sales in America had decreased sharply to just 27% in 2004 before rising to 30% in the final year. In contrast, after experiencing an upward trend, from 34% in 2002 to 38% in 2004, which was the highest figure recorded among three nations in this year, the percentage of European drug company sales fell significantly to 30%, sharing the similar figure with America.
In terms of the remaining category, the sales in Asia stood at only 25% in the first year, which was much lower than the counterparts. However, this figure saw an uptick and surpassed Europe and America before reaching at 40% in the final year.