The statistic(s) which were used by the Adjustment TCA feature to establish the watermark value identified by the cienaCesPmAdjustmentTcaLastUnderflowTcaWatermarkValue object. Since this object applies to the last Adjustment TCA which occurred on behalf of the PM instance due to end of Sample Interval incrementing the current underflow count to reach the configured underflow count associated with the interval profile associated with the PM instance, this object represents the value of cienaCesPmAdjustmentTcaUnderflowHighWatermarkStats at the time of such Adjustment TCA.