private void populateFrequencyPeriodDropdown(
      SavingsProductFormDto referenceData, SavingsProductFormBean formBean) {

    Map<String, String> frequencyPeriods = new LinkedHashMap<String, String>();
    for (ListElement option : referenceData.getInterestTimePeriodTypes()) {
      frequencyPeriods.put(option.getId().toString(), option.getName());
    }
    formBean.setFrequencyPeriodOptions(frequencyPeriods);
  }