ifc:IfcRecurrenceTypeEnum

<xs:simpleType name="IfcRecurrenceTypeEnum">
  <xs:restriction base="xs:string">
    <xs:enumeration value="daily"/>
    <xs:enumeration value="weekly"/>
    <xs:enumeration value="monthly_by_day_of_month"/>
    <xs:enumeration value="monthly_by_position"/>
    <xs:enumeration value="by_day_count"/>
    <xs:enumeration value="by_weekday_count"/>
    <xs:enumeration value="yearly_by_day_of_month"/>
    <xs:enumeration value="yearly_by_position"/>
  </xs:restriction>
</xs:simpleType>