The optional RelativeTotalVariation element is the total variation (part + appraiser + equipment) relative to the size of the tolerance zone corresponding to the "REL_TV" StatsValuesEnumType enumeration.
<xs:element name="RelativeTotalVariation" type="StatsMeasuredDecimalType" substitutionGroup="NumericCharacteristicWithTolStatsValue"><xs:annotation><xs:documentation>The optional RelativeTotalVariation element is the total variation (part + appraiser + equipment) relative to the size of the tolerance zone corresponding to the "REL_TV" StatsValuesEnumType enumeration.</xs:documentation></xs:annotation></xs:element>