The driver's exposure to risk of accident.
D000056:Accident Prevention; D000063:Accidents, Traffic; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001334:Automobile Driving; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008297:Male; D008393:Marriage; D008875:Middle Aged; D012424:Rural Population; D012737:Sex Factors; D013223:Statistics as Topic; D013548:Sweden; D013997:Time Factors; D014505:Urban Population