Seventy percent of all Twitter users signed up in 2008

Webware – “Online marketing firm, Hubspot, released a report Tuesday that details the “State of the Twittersphere” for the fourth quarter of 2008. According to the report, 70 percent of all Twitter users joined during 2008 and approximately 5,000 to 10,000 new accounts are opened each day.”

I wonder how many accounts were deleted, or only accessed once?