U.S. employers added 148,000 non-farm jobs in December, the Labor Department reported on Friday. The numbers fell short of the average increase of about 190,000 predicted by economists, and marked a slowdown from an average increase of 232,000 in the two previous months. Economists had been predicting that hiring would slow down eventually, just not this soon. The unemployment rate remained unchanged at 4.1 percent. Wages increased by 2.5 percent over the last 12 months, edging up from November's 2.4 percent figure, but still considered sluggish.