city and extend to San Juan del Río. These include the Zona Industrial Benito Juarez, Parque Industrial Querétaro, Parque Industrial Jurica Parque La Montaña and the Querétaro-San Juan del Río Industrial Corridor. Most of the businesses operating here are foreign-owned or were built with foreign investment monies. Industries include machine and auto parts, food processing, paper products, printing, chemicals and glass. Querétaro's economic growth is above the national average, due in part, the city believes, to the investment that it makes in infrastructure, public services and the creation of parks as well as sports and cultural facilities. The economy spurs immigration to the city, which has seen a population growth of more than 3.5 percent a year. The industrialization of the area has attracted a large number of migrants from poorer areas of Mexico but many of these are unemployed or under-employed. This has led to an explosion of informal markets and other businesses in and around the city. Also a large number of those seeking to migrate to the northern Mexican states or to the United States pass through here. This has led to commerce being the largest economic activity in the municipality. Tourism has grown as a sector of the economy, especially in the city proper, and is now one of the most important, accounting for 21 percent of the gross product of the city. Both Standard & Poor's and the newspaper Reforma have ranked Querétaro as one of the safest cities to live in with the highest quality of life in Mexico. According to the Secretaría de Desarrollo Sustenable Municipal, the city is expected to increase in size 35 percent over the next 20 to 25 years. Economic growth for 2009 and 2010 was predicted to be between one and two percent due to the worldwide economic downturn. Especially changes like the deconcentration of the economic activities (industry and service) and the emergence of a housing market lead to significant growth in cities like Querétaro. Major corporations headquartered in Querétaro include Bombardier Aerospace (an airplane manufacturing facility in Mexico), Kellogg's, Samsung Electronics, Daewoo, and Colgate-Palmolive. Harman International Industries, General Electric, Michelin, Tetra Pak, Siemens Mexico, New Holland, Faurecia, ABC Group, Autoliv, TRW Automotive, Tremec, Valeo, Funai, Procter & Gamble, Nestlé, Pilgrim's Pride, Santander Bank's call center for Latin America, Mabe Mexico, Irizar, Scania, Hitachi, Kostal, Aernnova, Dana, Dow Chemical, Bose, Alpha Hilex, Saint-Gobain, Flex-N-Gate, ThyssenKrupp, and TCS.