A third of American teens send more than 100 texts a day

"Daily text messaging among American teens has shot up in the past 18 months from 38% of teens texting friends daily in February of 2008, to 54% of teens texting daily in September 2009. And its not just frequency – teens are sending enormous quantities of text messages a day. Half of teens send 50 or more text messages a day, or 1,500 texts a month and one in three send more than 100 texts a day, or more than 3,000 texts a month. Older teen girls ages 14-17 lead the charge on text messaging, averaging 100 messages a day for the entire cohort. The youngest teen boys are the most resistant to texting – averaging 20 messages per day. "
Source: Teens and Mobile Phones, Pew Internet & American Life Project, 20th April 2010