costTypeEnum

<xsd:simpleType name="costTypeEnum">
  <xsd:restriction base="xsd:NMTOKEN">
    <xsd:enumeration value="CO2"/>
    <xsd:enumeration value="SOx"/>
    <xsd:enumeration value="NOx"/>
    <xsd:enumeration value="EmbodiedEnergyTransportation"/>
    <xsd:enumeration value="EmbodiedEnergyManufacture"/>
    <xsd:enumeration value="EmbodiedEnergyInstallation"/>
    <xsd:enumeration value="EmbodiedEnergyTotal"/>
    <xsd:enumeration value="PurchaseCost"/>
    <xsd:enumeration value="DeliveryCost"/>
    <xsd:enumeration value="FirstCost"/>
    <xsd:enumeration value="MonthlyCost"/>
    <xsd:enumeration value="AnnualCost"/>
    <xsd:enumeration value="MaintenanceCost"/>
    <xsd:enumeration value="OverhaulCost"/>
    <xsd:enumeration value="InstallationCost"/>
  </xsd:restriction>
</xsd:simpleType>