The given line graph illustrates how many inhabitants (per 100 people) in the world were using 5 distinct communication services between 1998 and 2008.
Overall, it is obvious that all means of services witnessed upward trends in the number of users over a deacade. Significantly, cellular phone service rose the most among the 5 categories, making it the most common communication service since 2002.
In 1998, landline service had the highest number of users, with nearly 15 per 100 people using it. This number then increased steadily to 20 people in 2006, before declining slightly to 19 residents in 2008. Regarding inhabitants choosing cellular phone service, there were only 5 people using it in 1998. Then this figure surged to 40 people in 2006 and reached a peak of over 60 users at the end of the period. The number of residents who selected Internet service soared to over 20 users, after a gradual rise from 4 to 10 people between 1998 and 2004.
From 1998 to 2004, people did not use fixed and mobile broadband. After that, there was a stable growth to nearly 2 per 100 people choosing fixed broadband compared to no one using mobile broadband in 2004. 2006 experienced a slight rise of 2 people using mobile broadband, whereas the figure for fixed broadband was 5 per 100 inhabitants. Then these two figures registered a small uptick to about 7 people in the last year examined.