For some jobs listed, one could make the argument. For some others, like say - mining machine operator- you'd need a beefier formula that accounts for the fact

For some jobs listed, one could make the argument. For some others, like say - mining machine operator- you'd need a beefier formula that accounts for the fact of where the jobs are located. In many(but not all) areas, the most diverse are the bigger cities. Not going to find many mines in Chicago or New York. That said, the veterinarian one surprised me a bit. I'd be fascinated to read a deeper dive into it. My suspected guess is that in rural areas, many veterinarians make 'house calls', and every resident has a -lot- of livestock, vs inner cities where one veterinarian can service a big chunk of the population. But, again, just a guess.