The pie chart illustrate the percentage shares of America, Europe, and Asia by the drug sales annually from 2002 to 2006.
Overall, America’s proportion declined significantly, while Europe exhibited notable declines after some increases in the first half of the period. However, Asia saw stready growth throughout the period, and climbed up to the first place by the second half.
To begin with, in 2002, drug company’s sales were mostly in America, at 41% of the total, and the shares for Asia and Europe were at 25% and 34%, respectively. In comparison, by 2003, these shares became 30% for Asia and 35% for each America and Europe. Similarly to the previous year, Asia gained 5 percentage points (from 30% to 35%) by 2004, whereas America dropped from 35% to 27%, showing the sharpest decline of 8%. At the same time, despite rising by only 3 percentage points, Europe dominated in 2004 at 38%.
In addition, further chages for America were positive (2% by 2005 and 1% by 2006) and its share was 30%. By contrast, Europe lost 4% in both 2005 and 2006, and remained at the same level with America at 30%. Meanwhile, Asia increased by 2 and 3 percentage points by 2005 and 2006, and remained a dominant at 40% by the end of the period.