The bar chart provides data regarding the proportions of drugs sailed by three countries from 2002 to 2006.
Overall,it is readily apparent that sales in Asia illustrated gradual growth,while Europe and America witnessed some variations in the total sellings of drugs over the given period.
Looking at the details,the only country having stable rise in sales was Asia.In 2002,Asian drug companies made up only 25%,which comparatively was smaller than sales of other regions.In the next 2 years,proportions rised to 35%,indicating a difference of 10% from previous years.Then,sales increased further to 37%,there by dominating among other countries in the next year.The final results revealed another rise,eventually reaching 40% in 2006.
In contrast,the remaining regions exhibited different changes.Americas drug seillings recorded the highest pick,with 41% in 2002,but then it took a hit in the following 2 years,decreasing to 27%.Despite those declines,proportions managed to recover to 30% by the final period.When it comes to the European drug companies,changes were complete opposite.The persentage of sales started at 34%,a figure that then increased to 38%by 2004.However,this was followed by slight drop to 30%,the same as America had in 2006.