Past year non-daily use remained stable among women overall χ2(10, N = 318,984) = 2.42, p=0.012 (Supplemental Table 6b11). Women age 12–17 χ2(1, N = 97,850) = 5.98, p<0.001, age 50+ χ2(10, N = 33,367) = 4.32, p<0.001, White women age 12–17 χ2(10, N = 58,914) = 7.26, p<0.001, White women age 50+ χ2(10, N = 25,523) = 3.63, p<0.001, and Other women age 50+ χ2(10, N = 6,413) = 0.34, p<0.001 reported significant variations in past year non-daily cannabis use between 2002 and 2012.