As is illustrated in the given bar chart, the subscriptionof mobile phones in developing countries is roughly half a billion in 2000,approximately 1.3 billion in 2004 and above 4 billion in 2008, while thatin developed countries is around 0.5 billion, 0.8 billion and 1 billion respectively.It’s apparent that the subscription of mobile phones has been on the dramaticrise over the past few years, while that in developed countries remains relativelysteady.