<xs:element name="futuresMonthCode" >
  <xs:annotation>
    <xs:documentation>Example - U, N, etc</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction base="xs:string">
      <xs:enumeration value="F"/>
      <xs:enumeration value="G"/>
      <xs:enumeration value="H"/>
      <xs:enumeration value="J"/>
      <xs:enumeration value="K"/>
      <xs:enumeration value="M"/>
      <xs:enumeration value="N"/>
      <xs:enumeration value="Q"/>
      <xs:enumeration value="U"/>
      <xs:enumeration value="V"/>
      <xs:enumeration value="X"/>
      <xs:enumeration value="Z"/>
    </xs:restriction>
  </xs:simpleType>
</xs:element>