In the United States, industrial production measures the output of businesses integrated in industrial sector of the economy. Manufacturing is the most important sector and accounts for 78 percent of total production. The biggest segments within Manufacturing are: Chemicals (12 percent of total production); food, drink and tobacco (11 percent); machinery (6 percent); fabricated metal products (6 percent); computer and electronic products (6 percent); and motor vehicles and parts (6 percent). Mining and quarrying account for 11 percent of production and utilities account for the remaining 11 percent.