Isn't average the wrong metric here though since such a low number of the 4 story and less buildings even have elevators to use? I bet there's datasets for thi

Isn't average the wrong metric here though since such a low number of the 4 story and less buildings even have elevators to use? I bet there's datasets for this actually. Also that doesn't count all the stairs subway riders use which I'd imagine would be a huge portion of stairs walked in NYC daily.