type income education prestige carpenter bc 21 23 33 electrician bc 47 39 53 RR.engineer bc 81 28 67 machinist bc 36 32 57 auto.repairman bc 22 22 26 plumber bc 44 25 29 gas.stn.attendant bc 15 29 10 coal.miner bc 7 7 15 streetcar.motorman bc 42 26 19 taxi.driver bc 9 19 10 truck.driver bc 21 15 13 machine.operator bc 21 20 24 barber bc 16 26 20 bartender bc 16 28 7 shoe.shiner bc 9 17 3 cook bc 14 22 16 soda.clerk bc 12 30 6 watchman bc 17 25 11 janitor bc 7 20 8 policeman bc 34 47 41 waiter bc 8 32 10