Average Annual Total Returns (%) as of 09/30/2017 Principal Stable Value Fund Bloomberg Barclays 1-3 Yr Government Index Stable Value Category Morningstar Percentile Ranking Total Funds in Category QTR 0.33 0.24 - - - YTD 1 Year 3 Year 5 Year 10 Year Since Inception Date 01/09/1997 ...