U.S. construction spending rose in June by the smallest amount in five months, the government said Monday, as a big drop in nonresidential building activity offset a third straight increase in home building. The Commerce Department reported that construction spending gained a slight 0.1 percent in June following a 1.8 percent increase in May and a 3.8 percent rise in April. Even with the June slowdown, construction spending advanced to a seasonally adjusted annual rate of $1.06 trillion, the best pace in seven years. Residential construction was up 0.4 percent, while nonresidential building fell 1.3 percent in June, with the category that covers shopping centers dropping 4.4 percent. Spending on government building projects was up 1.6 percent as a solid increase at the state and local levels offset a drop in federal projects.