<xs:element name="ExchangeRates" minOccurs="0">
    <xs:annotation>
        <xs:documentation xml:lang="en">Container for exchange rates.</xs:documentation>
    </xs:annotation>
    <xs:complexType>
        <xs:sequence>
            <xs:element name="ExchangeRate" maxOccurs="99">
                <xs:annotation>
                    <xs:documentation xml:lang="en">Indicates a rate of exchange used in fare currency conversions</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:attributeGroup ref="ExchangeRateGroup">
                        <xs:annotation>
                            <xs:documentation xml:lang="en">Group of attributes used to express an exchange rate between 2 currencies</xs:documentation>
                        </xs:annotation>
                    </xs:attributeGroup>
                </xs:complexType>
            </xs:element>
        </xs:sequence>
    </xs:complexType>
</xs:element>