Boys are among rising users, presumably texting girls that aren't replying.
Data from Pew Research shows the figure is up from 50 texts per day in 2009, while 75 per cent of all teens – between 12 and 17 – now text.
This spikes for 14-17 year olds that now sent around 100 messages per day in 2011, up from 60 in 2009, while boys send an average of 50 texts, up from 30, and African Americans increased from 60 to 80.
63 per cent of teens send text messages daily, compared to 39 per cent making calls, 35 per cent that meet face-to-face, 29 per cent messaging on social networks and 22 per cent using IMs. Email is the least popular means of communication with just six per cent.
The number of users making calls is declining, but 69 per cent of the heaviest texters – over 100 sent a day – also make calls everyday, compared to 43 per cent of light texters – those sending 0-20 texts per day.
Meanwhile, 23 per cent of 12-17 year-olds now own a smartphone, rising to 31 per cent for 14-17 year-olds.

http://www.mobile-ent.biz/news/read/...s-a-day/018103