Drivers who were distracted by such things as text-messaging, talking on a cell phone, conversing with passengers, and eating were involved in 5870 highway fatalities in 2008. This was an increase of about 18% over the number of distracted-driving fatalities in 2004 and is attributed largely to the increased number of drivers who texted in 2008. (Source: NHTSA's National Center for Statistics and Analysis) How many highway fatalities involved distracted driving in 2004?