The above diagram delineates the proportion of drug sales made by an international medicine corporation, distributing in various regions, including Asia, European and Africa, during the 4-year period of 2002-to-2006.
In general, the dominant ranking has been consistantly held by the proportion of drug sales made in European and African areas. Nevertheless, the above figure, similar which of South America, has experienced considerable fluctuating motion. Whereas that of Asia has experienced stable increase over the period, the opposite trend had been spotted in North America.
In the case of Asian areas, the number of drug purchase had made a significant growth. Evidently, this figure had doubled in percentage from 2002 to 2005, specifically, from 12% to 24%, and has continued this upward trend in 2006.
Dissimilarly, the drug sales of North America, had undergone a considerable drop. In fact, the figure had decreased consistently from 33% in 2002 to 21% in 2005, this percentage then proceeded to stablilize in 2006.
In the case of European and Africa, and South America, the percentage fluctuated over the years. In South America, the body of percentage reached its bottom in 2004 with 6%, and subsequently increased and stabilized with 11% from 2005 to 2006. However, the different motion had been experienced in the case of European and Africa, where it dropped to 40% in 2006 after experiencing its peak percentage of 48% in 2005. Nevertheless, the drug sales made in European and Africa remained its dominance ranking.