HouseOneRoomNumber*(HouseOneUse+HouseOneRoofType+HouseOneFloorType+HouseOneWallType+HouseOneBuiltTime-4)+10*(HouseOneLummaConnection) ValueHouseOne+2*ValueHouseTwo+3*ValueHouseThree+4*ValueHouseFour+5*ValueHouseFive+6*ValueHouseSix+10*(KindofToilet-1)+10*(PortableWaterSource-1) frequencies variables = WealthIndex. compute Classes = 1. if(WealthIndex >= 80) & (WealthIndex <= 120) Classes = 2. if(WealthIndex >= 121) & (WealthIndex <= 600) Classes = 3. execute. crosstabs /table = Lowestincome by Classes /cells = count column. crosstabs /tables = Highestincome by Classes /cells = count column.