As an industrial centre Madrid retains its advantages in infrastructure, as a transport hub, and as the location of headquarters of many companies. Industries based on advanced technology are acquiring much more importance here than in the rest of Spain. Industry contributed 7.5% to Madrid's value-added in 2010. However, industry has slowly declined within the city boundaries as more industry has moved outward to the periphery. Industrial Gross Value Added grew by 4.3% in the period 2003–2005, but decreased by 10% during 2008–2010. The leading industries were: paper, printing & publishing, 28.8%; energy & mining, 19.7%; vehicles & transport equipment, 12.9%; electrical and electronic, 10.3%; foodstuffs, 9.6%; clothing, footwear & textiles, 8.3%; chemical, 7.9%; industrial machinery, 7.3%.