Your own manipulation.
Have you smoked marijuana?
|Yes, I have.||24||13.11%|
|Yes, I have, and still do.||29||15.85%|
|Yes, I have, and would do it again.||33||18.03%|
|Yes, I have, but I wouldn't do it again.||21||11.48%|
|No, I haven't, but am interested in doing so.||5||2.73%|
|No, I haven't, and am not interested.||48||26.23%|
|No, but I do other (illegal) drugs.||1||0.55%|
|I am too stoned to answer.||10||5.46%|
|I refuse to answer.||5||2.73%|
|None of the above.||7||3.83%|