all jobs in 2004; in 2012, its largest employment sector became health care and social services. Queens is home to two of the three major New York City area airports, JFK International Airport and LaGuardia Airport. These airports are among the busiest in the world, leading the airspace above Queens to be the most congested in the country. This airline industry is particularly important to the economy of Queens, providing almost one-quarter of the sector's employment and more than 30% of the sector's wages. Education and health services were the next largest sector in Queens and comprised almost 24% of the borough's jobs in 2004; in 2012, transportation and warehousing, and retail were the second largest at 12% each. The manufacturing and construction industries in Queens are among the largest of the city and accounted for nearly 17% of the borough's private sector jobs in 2004. Comprising almost 17% of the jobs in Queens is the information, financial activities, and business and professional services sectors in 2004. , Queens had almost 40,000 business establishments. Small businesses act as an important part of the borough's economic vitality with two-thirds of all businesses employing between one and four people. Several large companies have their headquarters in Queens, including watchmaker Bulova, based in East Elmhurst; internationally renowned piano manufacturer Steinway & Sons in Astoria; Glacéau, the makers of Vitamin Water, headquartered in Whitestone; and JetBlue Airways, an airline based in Long Island City. Long Island City is a major manufacturing and back-office center. Flushing is a major commercial hub for Chinese American and Korean American businesses, while Jamaica is the major civic and transportation hub for the borough. Sports Queens is home of the New York Mets of Major League Baseball. Founded in 1962 as an expansion team, the Mets has won 2 World Series championships and 5 National League pennants. Citi Field is a 41,922-seat stadium opened in April 2009 in Flushing Meadows–Corona Park that is the home ballpark of the Mets. Shea Stadium, the former home of the Mets and the New York Jets of the National Football League, as well as the temporary home of the New York Yankees and the New York Giants Football Team stood where Citi Field's parking lot is now located, operating from 1964 to 2008. Queens will be the future home of the new stadium for New York City FC of Major League Soccer, which