The line graph illustrates how many types of communication services, namely, landline service, internet service, mobile broadband, cellular phone service and fixed broadband were used in the world from 1998 to 2008.
Overall, there was a rise in all means of communication worldwide mentioned above, with cellular phone service witnessing a dramatic increase. In addition, mobile broadband was the least used communication type throughout the period.
The number of people using cellular phone service commenced at about 5 per 100 inhabitants at the beginning, after which it experienced a significant increase to just over 60 per 100 inhabitants after a decade. Similarly, but to a lesser extent, the figure for internet service stood at 4 per 100 inhabitants in 1998, then this number rose to reach its peak at 21 per 100 inhabitants 10 years after.
Turning to other categories, fixed broadband and mobile had not been produced until 2002, with the former jumping to 4 per 100 inhabitants in 2008 and the latter going up slightly to 3 per 100 inhabitants in the same year. Landline service was the most used means in the first year, with 14 per 100 inhabitants, and then it dropped to nearly its initial level in the end.