“ No mention of cell phones seems odd. U bury it as an unacknowledged category in distracted driving. My guess is that it's a major factor.
Instead u pick on motorcyclists (btw, it's fewer helmets. Not less helmets). If there was no major change in helmet laws between the 2 years, it can't explain the large increase in the number deaths in 2015. The bigger problem is drivers of other vehicles, many of whom are likely on a cell phone, turning into motorcyclists' paths.
Again, a major cause of the increase in deaths is cell phone use. ”