Table 232.50.

Percentage distribution of students in grades 9-12, by number of times they reported using marijuana anywhere during the previous 30 days and selected student characteristics: Selected years, 2013 through 2019

[Standard errors appear in parentheses]
Year and student characteristic	0 times			1 or 2 times			3 to 39 times			40 or more times
1	2			3			4			5
2013
Total	76.6		(1.08)	7.1		(0.42)	11.3		(0.68)	5.0		(0.39)
Sex
Male	75.0		(1.14)	6.5		(0.42)	12.0		(0.72)	6.5		(0.53)
Female	78.1		(1.28)	7.8		(0.59)	10.7		(0.77)	3.4		(0.36)
Race/ethnicity
White	79.6		(1.36)	6.3		(0.63)	9.7		(0.75)	4.4		(0.42)
Black	71.1		(1.30)	8.2		(0.52)	14.3		(0.90)	6.3		(0.71)
Hispanic	72.4		(1.50)	8.6		(0.52)	13.4		(1.22)	5.6		(0.70)
Asian	83.6		(2.99)	4.1		(1.02)	7.6		(1.32)	4.7	!	(2.03)
Pacific Islander	76.6		(7.35)	4.9	!	(2.31)	17.1	!	(5.82)	‡		(†)
American Indian/Alaska Native	64.5		(6.37)	8.8	!	(2.70)	18.9		(4.54)	7.9	!	(2.77)
Two or more races	71.2		(2.55)	9.7		(1.36)	12.4		(1.45)	6.7		(1.29)
Grade
9th	82.3		(1.13)	6.3		(0.59)	8.6		(0.70)	2.8		(0.38)
10th	76.5		(1.89)	7.2		(0.65)	11.3		(1.35)	5.0		(0.81)
11th	74.5		(1.37)	7.6		(0.68)	12.0		(0.85)	6.0		(0.56)
12th	72.3		(1.58)	7.6		(0.68)	13.8		(1.00)	6.4		(0.63)
2015
Total	78.3		(1.22)	7.0		(0.37)	10.4		(0.81)	4.2		(0.40)
Sex
Male	76.8		(1.46)	6.4		(0.47)	11.4		(0.91)	5.5		(0.61)
Female	79.9		(1.33)	7.6		(0.44)	9.6		(0.87)	2.9		(0.31)
Race/ethnicity
White	80.1		(1.67)	6.9		(0.45)	9.6		(1.20)	3.5		(0.44)
Black	72.9		(1.57)	8.3		(1.14)	13.7		(1.06)	5.1		(0.99)
Hispanic	75.5		(1.49)	7.7		(0.64)	11.4		(0.84)	5.3		(0.62)
Asian	91.8		(1.58)	2.6	!	(0.87)	4.1		(0.87)	1.5	!	(0.72)
Pacific Islander	82.6		(4.88)	‡		(†)	5.5	!	(2.03)	‡		(†)
American Indian/Alaska Native	73.1		(5.20)	6.3	!	(2.47)	12.1	!	(3.74)	‡		(†)
Two or more races	76.5		(2.18)	6.0		(1.08)	12.1		(1.58)	5.4		(1.10)
Sexual identity1
Heterosexual	79.3		(1.29)	6.7		(0.41)	10.0		(0.87)	4.0		(0.40)
Gay, lesbian, or bisexual	68.0		(1.64)	10.3		(1.31)	15.7		(1.28)	6.0		(1.00)
Not sure	74.0		(2.28)	6.7		(1.50)	11.4		(1.56)	7.8		(1.44)
Grade
9th	84.8		(0.98)	5.5		(0.56)	7.3		(0.56)	2.4		(0.34)
10th	80.0		(1.87)	6.1		(0.73)	10.0		(1.18)	3.9		(0.59)
11th	75.2		(1.27)	7.7		(0.55)	12.9		(1.13)	4.3		(0.55)
12th	72.4		(1.93)	8.9		(0.61)	12.2		(1.33)	6.4		(0.82)
2017
Total	80.2		(0.84)	6.7		(0.33)	9.1		(0.52)	3.9		(0.34)
Sex
Male	80.0		(0.89)	6.3		(0.45)	8.9		(0.48)	4.7		(0.45)
Female	80.4		(1.14)	7.1		(0.45)	9.3		(0.73)	3.1		(0.44)
Race/ethnicity
White	82.3		(1.12)	6.1		(0.51)	8.1		(0.62)	3.5		(0.46)
Black	74.7		(1.24)	7.6		(0.81)	12.4		(1.04)	5.3		(0.66)
Hispanic	76.6		(1.85)	8.6		(0.42)	10.8		(1.39)	4.0		(0.51)
Asian	92.7		(1.79)	2.3		(0.68)	3.5		(0.98)	‡		(†)
Pacific Islander	83.9		(4.08)	7.1	!	(2.46)	6.3	!	(2.64)	‡		(†)
American Indian/Alaska Native	70.3		(6.30)	3.0	!	(1.34)	12.7	!	(4.28)	14.1	!	(5.10)
Two or more races	79.7		(2.27)	6.9		(1.14)	8.7		(1.41)	4.7		(1.17)
Sexual identity1
Heterosexual	80.9		(0.83)	6.6		(0.36)	9.0		(0.50)	3.5		(0.35)
Gay, lesbian, or bisexual	69.4		(1.68)	9.6		(1.39)	13.8		(1.12)	7.3		(1.12)
Not sure	81.1		(2.76)	5.5		(1.37)	7.6		(1.52)	5.8	!	(2.00)
Grade
9th	86.9		(1.07)	5.2		(0.43)	5.7		(0.65)	2.1		(0.37)
10th	81.3		(0.93)	6.7		(0.50)	9.0		(0.76)	3.0		(0.41)
11th	77.4		(1.23)	7.3		(0.46)	10.9		(0.90)	4.4		(0.45)
12th	74.3		(1.43)	8.0		(0.70)	11.5		(1.03)	6.2		(0.73)
2019
Total	78.3		(0.94)	8.0		(0.33)	9.9		(0.53)	3.9		(0.44)
Sex
Male	77.5		(0.95)	7.4		(0.46)	10.2		(0.67)	4.9		(0.53)
Female	79.2		(1.07)	8.5		(0.46)	9.4		(0.61)	2.9		(0.44)
Race/ethnicity
White	77.9		(1.16)	8.1		(0.51)	9.8		(0.57)	4.2		(0.66)
Black	78.3		(1.33)	8.0		(0.82)	10.1		(0.89)	3.6		(0.66)
Hispanic	77.6		(1.04)	8.3		(0.60)	10.8		(0.80)	3.3		(0.50)
Asian	91.5		(1.53)	3.5		(0.68)	2.9		(0.80)	2.1	!	(0.84)
Pacific Islander	85.7		(4.70)	5.3	!	(2.31)	‡		(†)	‡		(†)
American Indian/Alaska Native	66.2		(6.55)	‡		(†)	15.0	!	(4.99)	11.0	!	(4.25)
Two or more races	72.2		(2.13)	9.2		(1.32)	12.5		(1.56)	6.1		(1.10)
Sexual identity1
Heterosexual	79.1		(0.99)	7.6		(0.43)	9.6		(0.55)	3.7		(0.43)
Gay, lesbian, or bisexual	68.9		(1.89)	11.0		(1.00)	13.7		(1.08)	6.4		(1.07)
Not sure	80.5		(2.61)	7.8		(1.86)	7.8		(1.57)	3.9	!	(1.27)
Grade
9th	85.4		(0.93)	7.3		(0.71)	5.7		(0.55)	1.6		(0.35)
10th	80.2		(1.26)	7.7		(0.70)	9.0		(0.75)	3.0		(0.39)
11th	75.1		(1.66)	8.2		(0.60)	11.9		(0.94)	4.7		(0.84)
12th	71.7		(1.59)	8.7		(0.71)	13.3		(1.06)	6.3		(0.92)

†Not applicable.

!Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 and 50 percent.

‡Reporting standards not met. Either there are too few cases for a reliable estimate or the coefficient of variation (CV) is 50 percent or greater.

1 Students were asked which of the following--"heterosexual (straight)," "gay or lesbian," "bisexual," or “not sure"--best described them.

NOTE: The term "anywhere" is not used in the Youth Risk Behavior Survey (YRBS) questionnaire; students were simply asked how many times during the previous 30 days they had used marijuana. Estimates in this table do not include the use of synthetic marijuana (also called K2, Spice, fake weed, King Kong, Yucatan Fire, Skunk, or Moon Rocks). Race categories exclude persons of Hispanic ethnicity. Detail may not sum to totals because of rounding and the suppression of cells that do not meet National Center for Education Statistics reporting standards.

SOURCE: Centers for Disease Control and Prevention, Division of Adolescent and School Health, Youth Risk Behavior Surveillance System (YRBSS), 2013 through 2019. (This table was prepared September 2020.)