The chart below shows the percentage of a drug company's total sales, by region, from 2002 to 2006. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The given bar chart illustrates the distribution of a drug firm’s total sales across Asia, Europe, and America between 2002 and 2006. Overall, it is clear that, there was an upward trend in the proportion of total sales across Asian companies. In contrast, there was a downward trend in those across European and American companies. […]

The bar chart gives information about the percentages of drug company’s sale in America, Europe, and Asia between 2002 and 2006. Overall, drug sale in America represented the highest level in the initial years, but it had a gradual decrease by the end of the period. Moreover, in European countries, the drug sale experienced slight […]