I've done some halfased research. Based on other peoples high and the times that they've lasted, I'd say that one hit of weed can get you abouuut half an hour or so. So, it takes about 10 or so hits to completely finish a blunt ; 5 hours of high. 5 times 365 days times 4 days equals 7,500. 7,500 blunts only do about 225,000 hours of high, equals to 9,375 days, which equals to 22 years worth of high.
I don't know, I'm ass at math.
And you said 4 years
I'm dumb