Table 6-3. YRBS: Prevalence of binge drinking in the past 30 days, by grade and sex, United States, 1991–2007.

Sex and Year	Grade
	Total		9th grade		10th grade		11th grade		12th grade
	Percent	S.E.	Percent	S.E.	Percent	S.E.	Percent	S.E.	Percent	S.E.
Both Sexes
2007	26.0	1.0	17.0	1.0	23.7	1.5	29.9	1.4	36.5	1.7
2005	25.5	1.1	19.0	1.1	24.6	1.6	27.6	1.6	32.8	1.7
2003	28.3	1.0	19.8	1.2	27.4	1.5	31.8	1.6	37.2	1.2
2001	29.9	1.0	24.5	1.4	28.2	1.3	32.2	1.7	36.7	1.9
1999	31.5	1.0	21.1	1.1	32.2	1.6	34.0	1.5	41.6	2.8
1997	33.4	1.1	25.7	2.0	29.9	1.9	37.5	1.5	39.3	2.4
1995	32.6	1.5	24.5	1.8	30.3	2.0	34.9	2.0	39.0	1.9
1993	30.0	1.0	22.0	1.0	26.2	1.3	31.3	1.7	39.1	1.6
1991	31.3	1.7	22.6	2.0	27.1	1.8	36.3	2.5	39.3	2.7
Male
2007	27.8	1.4	17.0	1.7	25.5	1.9	33.1	1.3	40.4	2.6
2005	27.5	1.3	20.7	1.7	25.1	1.8	30.4	2.0	36.2	1.8
2003	29.0	1.1	18.8	1.4	27.7	1.9	34.1	2.0	39.5	1.9
2001	33.5	1.5	26.2	2.2	30.1	1.8	38.5	2.4	42.0	2.2
1999	34.9	1.3	21.7	1.9	33.4	2.8	38.8	2.9	49.5	2.9
1997	37.3	1.2	25.5	2.8	32.7	1.5	45.2	2.3	44.0	2.9
1995	36.2	1.5	27.6	2.6	32.1	2.3	37.8	2.4	46.5	2.1
1993	33.7	1.1	24.0	1.6	27.2	1.5	37.1	2.2	45.0	2.3
1991	36.5	2.1	24.8	2.5	31.4	2.2	44.1	3.3	45.8	3.5
Female
2007	24.1	1.1	17.2	1.2	21.8	1.9	26.7	2.0	32.8	1.9
2005	23.5	1.2	17.3	1.4	24.1	1.8	25.0	1.7	29.2	2.0
2003	27.5	1.1	20.9	1.7	27.2	1.8	29.4	1.7	34.5	1.8
2001	26.4	1.0	23.0	1.6	26.3	1.5	26.1	1.5	31.8	2.5
1999	28.1	1.0	20.2	1.6	31.1	1.8	29.0	2.5	33.9	3.0
1997	28.6	1.4	25.8	2.5	26.3	3.7	28.2	2.1	33.6	2.5
1995	28.6	2.0	20.2	1.7	28.3	2.8	31.8	2.8	31.6	2.4
1993	26.0	1.1	19.7	1.6	25.3	1.6	25.1	1.4	33.0	1.8
1991	25.9	1.3	20.4	2.1	22.3	2.1	28.1	2.3	32.8	2.4

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