Among women overall, past year daily cannabis use varied significantly between 2002 and 2012 χ2(10, N = 318,984) = 6.43, p<0.001, and when comparing 2002 to 2012 directly, increased (0.8% vs. 1.2%) χ2(1, N = 56,848) = 11.78, p=0.001 (Supplemental Table 7b13).