Yields on Fannie Mae and Freddie Mac mortgage bonds approached a 14-month high as May employment data failed to allay concern that the Federal Reserve will pare back its unprecedented stimulus, Bloomberg reports.

Fannie Mae’s current-coupon 30-year securities rose 0.03 percentage point to 2.96 percent as of 11 a.m. in New York, according to data compiled by Bloomberg. Yields reached 3 percent on June 4, the highest level since April 2012, climbing from a record-low 1.68 percent in September when the Fed said it would start buying $40 billion of home-loan debt a month to begin its third round of bond purchases.