According to gov figs the ratio of 1 out of every 4 us citizens smoke weed so lets do the math:
302,629,020 people---us census bureau
times 25% equals==75,657,255 people smoking weed,ok then multiply by 4qrtrs a month(my estimate)==302,629,020 qrtrs a month smoked times 15. dollars per qrtr==4,539,435,300.00 dollars per monthtimes 12== so we could conceivably add an extra 54,473,223,600.00 dollars to the us economy!!!!! Talk about FLOWER POWER!! cigs would go out of vouge and weed would spread like well weeds.