The information illustrated on the line graph indicates how youngsters contacted each other in one USA state from 2006 to 2009.
Overall, text messages’ popularity rose gradually, becoming the most common communication channel by September 2009, while calls on cell phones’ prevalence went up slightly. In addition, face-to-face talks underwent fluctuations, eventually remaining at the same level, whereas emailing had a little parabolic movement, practically staying constant.
In November 2006, text messaging was not widespread, covering approximately one third of all teenagers, but in the next almost three years, great changes occurred, making this communication approach the most common: more than half of young people used it by September 2009.
Cell phone calling and face-to-face talking together were used by a vast majority of teens (around 68 percents), but, like emailing, their number of users remained almost the same by September 2009. The phone calls had a slight increase from roughly 35% to almost 40%. The meetings in person had many fluctuations mostly in the diapasone of 30-40%, while emails had polinomial reduction to 10% of teenage users.