In Spain, industrial production measures the output of businesses integrated in industrial sector of the economy. Manufacturing is the most important sector and accounts for 82 percent of total production. The biggest segments within Manufacturing are: Food products (12 percent of total production); fabricated metal products, except machinery and equipment (9 percent); motor vehicles, trailers and semi-trailers (6 percent); chemicals and chemical products (6 percent); other non-metallic mineral products (5 percent); rubber and plastic products (4 percent); machinery and equipment (4 percent); basic metals (4 percent); and beverages (4 percent). Electricity, gas, steam and air conditioning account for 14 percent of total output; Water supply, sewerage, waste management and remediation account for 3 percent; and Mining and quarrying account for 1 percent.