Table 3.

Past Year Prevalence of Cannabis Use and Cannabis Use Disorder, 2002–2017 (NSDUH).

	Past Year Use				Cannabis Use Disorder
	US-Born		Foreign Born		US-Born		Foreign Born
	%	95% CI	%	95% CI	%	95% CI	%	95% CI
2002–2003	11.8	(11.5–12.1)	4.4	(4.0–4.9)	2.00	(1.90–2.10)	0.60	(0.50–0.80)
2004–2005	11.6	(11.3–11.9)	4.2	(3.8–4.7)	2.00	(1.90–2.10)	0.60	(0.50–0.80)
2006–2007	11.3	(11.0–11.7)	3.7	(3.3–4.2)	1.80	(1.70–1.90)	0.60	(0.50–0.80)
2008–2009	12.0	(11.6–12.3)	4.5	(4.0–5.1)	1.90	(1.80–2.00)	0.60	(0.50–0.70)
2010–2011	12.9	(12.5–13.2)	4.1	(3.7–4.5)	1.90	(1.80–2.00)	0.70	(0.50–0.80)
2012–2013	13.8	(13.4–14.1)	4.3	(3.8–4.8)	1.80	(1.70–2.00)	0.40	(0.30–0.50)
2015–2016	15.3	(14.9–15.6)	5.4	(5.0–5.9)	1.70	(1.60–1.70)	0.70	(0.50–0.80)
2016–2017	17.4	(16.9–17.9)	6.3	(5.8–6.8)	1.70	(1.60–1.80)	0.60	(0.50–0.80)

Note. Prevalence estimates adjusted for survey design effects. Prevalence estimates in bold signify that the corresponding 95% confidence intervals (CI) do not overlap with the CI for 2002–2003. No data on immigrants was available for the 2014 survey year. As such, this year is omitted and information is included on both the 2015–2016 and 2016–2017 gears. The Restricted Data Analysis System does not provide information for 2015–2017. It should be noted that two different modes of administration were used for the immigrant status question: interviewer-asked (2002–2014) and self-administered via a computer (2015–2017).