Despite being more exposed than any other sector of UK business to lower overseas labour costs and exchange rate fluctuations, manufacturing accounts for 6% of turnover and over 13% of exports. The sector’s comparative efficiency reflects forced moves since the 1980s to seek higher value, higher technology opportunities and a steady retreat from many manufacturing and engineering categories. UK paper mills produce hundreds of different grades of paper and board, which are converted into a wide range of products for use in industry, commerce, education, communications, distribution and in the home, together with a host of speciality papers for industrial use. The UK printing industry is one of the largest of the UK's manufacturing industries, serving all sectors of the economy. Its structure reflects the diversity of its products and fragmented nature of its market.