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

The provided stacked bar chart compares the total

sales

of a particular drug company in three different regions from 2002 to 2006.

Overall

, America and Europe witnessed downward trends in the percentage of the company's total

sales

,

while

there was an opposite tendency in the case of Asia.

Moreover

, Asia emerged as the region with the highest

sales

in 2006. The chart shows that America was the largest market in 2002, accounting for 41% of total

sales

, but it declined to 27% in the first half of the surveyed period. Between 2004 and 2006, there was a slight increase in the figure for

this

region, approximately 3%.

On the other hand

, Europe experienced a gradual increase from 34% to 38% within the first two years, followed by a decline that eventually

equaled

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equalled

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the

sales

in America by the end of the period. It is noteworthy that the proportion of the corporation's total

sales

in Asia witnessed an upward trend from 25% to 40% in 2006, which makes

this

region the largest market in the

last

year of the period.