Describing graphs

Task: Describe the main changes shown in the graph below giving reasons for your interpretation. (Approx. 250 words)

Global ICT developments, 2000-2010

For the graph above we could say:
The graph shows the estimated global ICT developments from the year 2000 until 2010. It distinguishes between the owners of mobile cellular telephone subscriptions, internet users, fixed telephone lines, mobile broadband subscriptions and fixed broadband subscriptions. Starting in 2000 there was a steep rise of approximately 600 percentage for the mobile cellular telephone subscriptions and ending in 2010. However the second highest increase was noticeable for the internet users, which more than tripled (to 30%).
The percentage of mobile broadband subscriptions (12%) was almost equal to percentage of fixed broadband subscriptions (9%) in the year 2010. During a period of ten years there was for both groups no remarkable deviation visible. Also the use of fixed telephone lines remained constant.

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