In the United Kingdom, industrial production measures the output of businesses integrated in industrial sector of the economy. Manufacturing is the most important sector and accounts for 70 percent of total production. The biggest segments within Manufacturing are: Food, drink and tobacco (11 percent of total production); transport equipment (9 percent); basic metals (8 percent); other manufacturing and repair (6 percent); pharmaceutical products and preparations (6 percent); and rubber and plastic products and non-metallic mineral products (6 percent). Mining and quarrying account for 12 percent of production, as oil and gas extraction accounts for 10 percent. Electricity, gas, steam and air conditioning account for 11 percent of total output and water supply, sewerage and waste management account for 8 percent.