nem sei porque perco meu tempo...
Cannabis use, a stepping stone to other drugs? The case of Amsterdam.
As Table 1 shows, about 6% of the household population older than 12 have ever lifetime experience with cocaine. Among people who have ever used cannabis this percentage is noticeably higher. Among them, ever-experience with cocaine is roughly 22% over the years in which we performed our household surveys (see Table 3).
quem nunca fumou maconha = 6% já cheirou
quem já fumou maconha = 22% já cheirou
Looking at the 21.7% of cannabis users that do develop experience with cocaine, we see that life time experience with cocaine increases as level of cannabis involvement increases. Cocaine experience exists with almost 22% of all cannabis users, but if we look at the small group with the highest levels of cannabis use and experience, we find life time cocaine use with more than half (53%).
quanto maior o uso de maconha, maior a chance de cheirar