hub of services and businesses. The city is the headquarters of large telecom companies, such as Intelig, Oi and Embratel. Major Brazilian entertainment and media organizations are based in Rio de Janeiro like Organizações Globo and also some of Brazil's major newspapers: Jornal do Brasil, O Dia, and Business Rio. Tourism and entertainment are other key aspects of the city's economic life. The city is the nation's top tourist attraction for both Brazilians and foreigners. To attract industry, the state government has designated certain areas on the outskirts of the city as industrial districts where infrastructure is provided and land sales are made under special conditions. Oil and natural gas from fields off the northern coast of Rio de Janeiro state are a major asset used for developing manufacturing activities in Rio's metropolitan area, enabling it to compete with other major cities for new investment in industry. Owing to the proximity of Rio's port facilities, many of Brazil's export-import companies are headquartered in the city. In Greater Rio, which has one of the highest per capita incomes in Brazil, retail trade is substantial. Many of the most important retail stores are located in the center, but others are scattered throughout the commercial areas of the other districts, where shopping centers, supermarkets, and other retail businesses handle a large volume of consumer trade. Rio de Janeiro is () the second largest exporting municipality in Brazil. Annually, Rio exported a total of $7.49B (USD) worth of goods. The top three goods exported by the municipality were crude petroleum (40%), semi finished iron product (16%), and semi finished steel products (11%). Material categories of mineral products (42%) and metals (29%) make up 71% of all exports from Rio. Compared to other cities, Rio de Janeiro's economy is the second-largest in Brazil, behind São Paulo, and the 30th largest in the world with a GDP of R$ 201,9 billion in 2010. The per capita income for the city was R$22,903 in 2007 (around ). Largely because of the strength of Brazil's currency at the time, Mercer's city rankings of cost of living for expatriate employees, reported that Rio de Janeiro ranked 12th among the most expensive cities in the world in 2011, up from the 29th position in 2010, just behind São Paulo (ranked 10th), and ahead of London, Paris, Milan, and New York. Rio also had the most expensive hotel rates in Brazil,