Is there no direct logical correlation between '18 In 1989, rural carriers received an average of 34 cents per mile as a motor vehicle allowance.' and 'The allowance in 1989 was 50 cents per mile.', indicating neutrality?
18 In 1989, rural carriers received an average of 34 cents per mile as a motor vehicle allowance.###The allowance in 1989 was 50 cents per mile.