Easy enough to cross check with insurance underwriting career risk tables. I no longer have acess to that info. It's surprising to see what is considered high risk fields, it's not just arborists and lineman. Stressful desk jobs can kill you just as quick.
I've heard that dentists actually have the highest suicide rate. But that's neither here nor there.
I don't make the rules. I just think them up and write them down.