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 bar chart provides a breakdown of a drug company’s total sales between 2002 and 2006, with a further classification by region. In general, while great variations are witnessed in the percentage of this company’s sales in America and Europe, only the figure for Asia experienced an upward trend during the examined period. From 2002 […]