private ArrayList<Integer> generateAgeColumnCodes(ArrayList<String> columnLabels) {
		ArrayList<Integer> columnCodes = new ArrayList<Integer>();
		for(int i = 0; i < columnLabels.size(); i++) {
			String curLabel = columnLabels.get(i);
			
			if(curLabel.equals(Constants.APTA_AGE_0_14_LBL))
				columnCodes.add(i, Constants.APTA_AGE_0_14);
			else if(curLabel.equals(Constants.APTA_AGE_15_19_LBL))
				columnCodes.add(i, Constants.APTA_AGE_15_19);
			else if(curLabel.equals(Constants.APTA_AGE_20_24_LBL))
				columnCodes.add(i, Constants.APTA_AGE_20_24);
			else if(curLabel.equals(Constants.APTA_AGE_25_34_LBL))
				columnCodes.add(i, Constants.APTA_AGE_25_34);
			else if(curLabel.equals(Constants.APTA_AGE_35_44_LBL))
				columnCodes.add(i, Constants.APTA_AGE_35_44);
			else if(curLabel.equals(Constants.APTA_AGE_45_54_LBL))
				columnCodes.add(i, Constants.APTA_AGE_45_54);
			else if(curLabel.equals(Constants.APTA_AGE_55_64_LBL))
				columnCodes.add(i, Constants.APTA_AGE_55_64);
			else if(curLabel.equals(Constants.APTA_AGE_65_OVER_LBL))
				columnCodes.add(i, Constants.APTA_AGE_65_OVER);
			else 
				columnCodes.add(i, -1);
		}
		
		return columnCodes;
	}