In Germany, Manufacturing is the most important sector in industry and accounts for 79 percent of total production. The biggest segments within Manufacturing are: machinery and equipment (12 percent of total production); motor vehicles, trailers and semi-trailers (12 percent); basic metals and fabricated metal products (10 percent); and computers, electronic and optical products and electrical equipment (10 percent). Construction accounts for 11 percent of total output; and energy production accounts for 10 percent.