Past year daily cannabis use varied significantly among men in the NSDUH overall χ2(10, N = 295,595) = 8.74, p<0.001, and when comparing the prevalence in 2002 to 2012 directly, the prevalence increased significantly (1.9% vs. 3.0%) χ2(1, N = 52,499) = 34.94, p<0.001 (Supplemental Table 7a12).