The Nielsen Company:
If it seems like American teens are texting all the time, it’s probably because on average they’re sending or receiving 3,339 texts a month. That’s more than six per every hour they’re awake .
On average, teens (aged 13-17) send more than one text message every ten minutes that they are awake. Females in this demographic are even more prolific, averaging 4,050 texts per month, or approximately one every seven minutes. I wonder how many of these are sent while driving?
This should also make it clear why cellular providers have little motivation to reduce SMS data charges, even though prices are absurd.