Table 2.

Estimated Prevalence, % [95% CI] of Adolescent Marijuana Use, 1997–2013 YRBS Data, Michigan, the United States

Year	Total	Gender		Race
		Male	Female	White	Black	Others
Current users
1997	28 [25, 32]	32 [27, 36]	25 [20, 29]	28 [23, 32]	28 [21, 34]	34 [27, 42]
1999	26 [23, 30]	30 [26, 34]	23 [19, 27]	25 [22, 29]	30 [19, 40]	29 [22, 37]
2001	24 [22, 27]	25 [22, 28]	24 [20, 27]	25 [22, 28]	21 [16, 26]	22 [19, 26]
2003	24 [20, 28]	26 [20, 31]	23 [20, 26]	24 [19, 28]	27 [20, 35]	24 [20, 28]
2005	19 [16, 22]	20 [16, 24]	18 [15, 20]	18 [15, 21]	22 [17, 28]	26 [21, 32]
2007	18 [16, 21]	20 [17, 23]	17 [14, 20]	18 [15, 21]	20 [16, 24]	20 [15, 26]
2009	21 [19, 23]	22 [19, 25]	20 [17, 22]	21 [18, 23]	21 [14, 28]	25 [20, 31]
2011	19 [16, 21]	22 [19, 25]	16 [13, 19]	19 [16, 21]	18 [11, 24]	20 [15, 25]
2013	18 [16, 19]	19 [17, 21]	17 [15, 19]	18 [16, 19]	18 [13, 22]	21 [16, 26]
Never-users
1997	52 [47, 57]	49 [44, 54]	54 [48, 61]	53 [47, 59]	46 [39, 53]	48 [39, 57]
1999	53 [50, 57]	50 [46, 54]	56 [52, 61]	54 [50, 58]	48 [37, 60]	51 [44, 58]
2001	56 [52, 60]	55 [50, 59]	58 [54, 62]	56 [51, 60]	60 [53, 67]	53 [47, 59]
2003	56 [51, 60]	53 [49, 58]	58 [53, 63]	57 [52, 61]	50 [41, 59]	56 [51, 62]
2005	62 [58, 66]	60 [54, 65]	64 [60, 69]	65 [61, 69]	50 [42, 59]	54 [47, 61]
2007	64 [61, 68]	62 [57, 67]	67 [62, 71]	65 [61, 70]	61 [54, 68]	60 [54, 67]
2009	63 [61, 66]	62 [58, 66]	65 [62, 68]	64 [61, 67]	62 [57, 68]	60 [55, 66]
2011	66 [62, 69]	62 [58, 65]	70 [65, 74]	68 [64, 71]	61 [51, 70]	61 [55, 67]
2013	67 [65, 70]	66 [63, 69]	69 [66, 72]	69 [66, 71]	62 [53, 71]	65 [59, 71]

Note: Michigan passed its state Medical Marijuana Laws in November 2008.