Sweden's Volvo made the three-point seatbelt design pat 5 7, 7:39am

@a_norwegian_guy Basically. I think it's more like
# of crashes per year
multiplied by (average # people per crash minus average # people who wear safety belts)
divided by 365.4
divided by 24
divided by 60
...or else someone is comparing vehicle fatalities before and after safety belts became mandatory in most vehicles, factoring in the rise in speed limits, air bags, "crushable" cars, child seats, etc.