The stacked bar chart illustrates the proportion of a medicine company’s total sales, by continent, over a period of 4 years, starting from 2002.
Looking from an overall perspective, it is readily apparent that the figure for European and Africa account for the most of this business’s total incomes, throughout the period, while the data for Asia experienced the most significant change.
Looking first of all, in 2002, European and Africa contributed 44% to the firm’s total sales, trailed behind by North America, recorded 33%. The statistics of North America then dropped to 21%, while that of European and Africa undergone a fluctuation, reached its peak at 48% in 2004, then witnessed a slight decrease by 8% at the end of the observation period.
There was a remarkable increase in the percentages of deals made in Asia, from 12% to 28%, during a period of 4 years, starting from 2002. Dissimilarly, the period between 2002 and 2006 exhibited a stagnation in the proportion of medicine consumption in South America, remained unchanged at 11%.