The optional SubgroupNumbersUnderLowerTolerance element is a list of the number of characteristics below the lower specification limit in each subgroup corresponding to the "NOOTLO" SubgroupStatsValuesEnumType enumeration.
<xs:element name="SubgroupNumbersUnderLowerTolerance" type="SubgroupIntegersType" substitutionGroup="NumericCharacteristicWithTolStatsValue"><xs:annotation><xs:documentation>The optional SubgroupNumbersUnderLowerTolerance element is a list of the number of characteristics below the lower specification limit in each subgroup corresponding to the "NOOTLO" SubgroupStatsValuesEnumType enumeration.</xs:documentation></xs:annotation></xs:element>