In Portugal, Manufacturing is the most important sector of industry and accounts for 93.9 percent of total production. The biggest segments within Manufacturing are: food products (13 percent of total production); coke, refined petroleum products and fuels (10 percent); motor vehicles, trailers and semi-trailers (9 percent); metal products, except machinery and equipment (7 percent); chemicals and synthetic or artificial fibers, except pharmaceuticals (5 percent); rubber and plastic products (5 percent); and paper products (5 percent).