By Ben Eisen
NEW YORK (MarketWatch) -- Treasury prices were mostly higher Friday ahead of a University of Michigan consumer-sentiment index reading. The index is expected to increase to 77.5 in May from 76.4 in April, but many data releases this week have come in below expectations. Safe-haven U.S. government debt gained for the last two days as that weak data helped reverse a narrative of quickening economic growth. As prices went up Friday, the 10-year benchmark Treasury note 10_YEAR +0.05% yield went down half a basis point to 1.881% while the 5-year note 5_YEAR -0.76% yield dropped 1 basis point to 0.780%. The 30-year bond 30_YEAR +0.32% yield was up half a basis point at 3.105%.