How many people drink coffee a day in the world?

because Starbucks is the shizzit and caffeine is addicting to many people. i, for one, have to have caffeine everyday or else i feel sick and have a major headache. some people just make it part of their daily routine and form an habitual habit out of the act of going to the Starbucks and ordering their favorite drink. also, some people have the money to spend to drink over priced coffee drinks everyday. if you got it, flaunt it. there is really nothing wrong with drinking Starbucks everyday if you have the resources to pay for it and enjoy the affects that it has on you.