Last week's economic releases included readings on new home sales, pending home sales and Case-Shiller Home Price Indices. Construction spending and consumer sentiment reports were also released, along with weekly readings on average mortgage rates and new jobless claims. New Home Sales Drop in January New home sales were reported at a seasonally-adjusted annual rate of 593,000 sales in January according to the Commerce Department. Analysts expected a rate of 693,000 sales based on December's upwardly revised rate of 643,000 sales of new homes. January's reading was 7.80 percent lower than for December; January's reading was one percent lower than…