Ln(L)

Males ∆Ln(L)

% ∆Ln(L)

Ln(L)

Females ∆Ln(L)

% ∆Ln(L)

Baseline Ln(L0)

−3705

0.0

0.0

−3632

0.0

0.0

Respondent

Characteristics Ln(L1)

−3675

30

30.6

3615

17

12.5

Smoking Ln(L2)

−3614

61

62.2

−3525

90

66.1

Smoking and

Marijuana Use Ln(L3)

−3607

7

7.1

−3496

29

21.3

Ln(L0) - Ln(L3)

98

100

136

100