How many people smoke a day?
around 500000000 people smoke a day
I'm not sure there really is an average amount. Some people smoke only on special occasions, a few times a year. Some people smoke every few weeks. Some people smoke only on weekends. Some people take one or two hits each day. Some people smoke one bowl (one pipeful) or one joint each day. Some people smoke 2 bowls or joints a day. Or 4 bowls/joints a day. Or even more.
Generally speaking, smoking tobacco cigarettes will kill you faster. Although much controvery still surrounds the safety of smoking tobacco cigarettes vs marijuana, people who smoke tobacco cigarettes generally smoke ALOT more than people who smoke marijuana (few people smoke 20 joints or bowls a day, but MANY people smoke 20 cigarettes a day). This factor alone makes smoking tobacco cigarettes MUCH more hazardous than smoking marijuana.