age	n	alcohol-use	alcohol-frequency	marijuana-use	marijuana-frequency	cocaine-use	cocaine-frequency	crack-use	crack-frequency	heroin-use	heroin-frequency	hallucinogen-use	hallucinogen-frequency	inhalant-use	inhalant-frequency	pain-reliever-use	pain-reliever-frequency	oxycontin-use	oxycontin-frequency	tranquilizer-use	tranquilizer-frequency	stimulant-use	stimulant-frequency	meth-use	meth-frequency	sedative-use	sedative-frequency
0	12	2798	3.9	3.0	1.1	4.0	0.1	5.0	0.0	-	0.1	35.5	0.2	52.0	1.6	19.0	2.0	36.0	0.1	24.5	0.2	52.0	0.2	2.0	0.0	-	0.2	13.0