Real guesses HERE.
I'm going to make a guess here:
Guessing he started smoking at 17 (conservative guess). That would mean he's been smoking for 50 years.
I would have to say he's averaged two packs a day. 20 cigarettes a pack. That's...40x356=14,600.
14,600x50= 730,000 cigarettes...and counting.
What do you think?