@staticmethod
def fields():
    """Returns a list of fields and the order in which they appear in the data
        retrieved from the Japanese Post Office"""
    return ['nglc', 'old_code', 'code', 'kk_pref', 'kk_city', 'kk_local',
        'pref', 'city', 'local', 'has_multiple_local', 'req_city_entry',
        'req_street_entry', 'multiple_locals', 'recently_changed', '_rcr']
