Table 2.

Percentage of students reporting tobacco, marijuana, and alcohol use in the past 3 months

	Percentage of students using each substance
	Tobacco	Marijuana	Alcohol
Spring 6	8.42	3.14	8.21
Fall 7	12.41	5.25	11.41
Spring 7	15.37	8.20	14.97
Fall 8	19.21	12.30	19.75
Spring 8	20.00	14.17	22.90
Fall 9	26.30	19.72	29.76
Spring 9	26.38	21.58	32.40
Fall 10	26.66	22.89	34.70
Spring 10	27.87	25.22	44.47
Fall 11	27.72	26.43	39.79
Fall 12	25.33	25.24	46.18