inc as % of area median: 1:0-30%; 2:30-50%; 3:50-60%; 4:60-80%; 5:missing
1:nonhispanic white;2:nonhispanic black; 3:hispanic; 4:other; 5:miss
hhd size: 1:1 person; 2:2 persons; 3:3 or more; 4:missing
hhd type: 1:married parent; 2:single parent; 3:other; 4:missing
construction type: 1: new 2: existing 3: missing
numbe of bedrooms: 1:0,1,2 bedrooms;2:3 or more bedrooms