Commercial banks and savings institutions reported a combined $5.479 billion in net income from mortgage-banking activity during the fourth quarter of 2016, according to a new Inside Mortgage Trends analysis of call-report data. The industry’s mortgage-banking income was up 5.8 percent from the third quarter, lifting the total for the year to $17.544 billion. That was down 4.6 percent from 2015. Bank of America ranked as the top earner in ... [Includes one data chart]