Band 5+: 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 bar graph illustrates the key information about the drug’s selling in three different countries america , eruope and asia , during 4 years period from 2002 to 2006 .

overall , it is clear from the graph that american and eruopean drugs commerce had a slightly decreased during the course of years , where as asia was dramatically going to the top of the list of drugs sales .

according to what is shown , during the first three years american sales dropped from 41 to 35 percent and then to 27 percentage , on the contrary , asian and eruopean sales increased from 25 and 34 percent in 2002 to 30 and 35 percent in 2003 until 35 and 38 percent in 2004 respectively .

in terms of the last two years in the period , it was noticed that america backed to raise thier sales to 29 and 30 percent , also asia did the same thing by continued in ascending action to 37 then 40 percent , so became on the top of the list , on the other hand , eruopean sales suddenly had reduced to 34 again and 30 percent at last equally with amedica