I'd imagine it varies. In Maine a lot of people drink and smoke. I've seen plenty of people drink a couple bottles of wine to start off (or an equivalent amount of other alcohols). People don't chain smoke 20 or 30 cigarettes usually but they'll chain smoke a few, go back inside, drink more, go back outside etc. It isn't unusual to go through a pack in a night if there is a party or something. People would probably smoke more if smoking indoors wasn't so taboo for the most part here.
As a former resident of Maine I'll attest that people love drinking because there's fuckall to do in Maine and they need to come back inside after 1-2 cigarattes because the outside is freezing and filled with bears.