population explosion of the 1980s and 1990s included: Bell Labs and Western Electric (once Alcatel-Lucent, now Nokia), Amoco (now BP and Ineos), Nalco, Calamos, Nicor, and Edward Hospital. and ConAgra's Grocery division branch office employs approximately 400 workers. Kraft Foods (now Mondelez International) opened their Naperville site in 1968, and employs over 200 individuals at the plant, which supplies all Triscuit products for North America. Naperville is also home to the headquarters of Dukane Precast and its double-wall precast concrete manufacturing plant. Naperville was one of the nation's ten fastest-growing communities during the 1990s. It was home to the Office Max headquarters until the 2013 merger between Office Max and Office Depot. The former Office Max headquarters in Naperville was sold, as the merged company moved to Boca Raton. The Naperville area is home to many retailers, restaurants and shopping centers, such as Downtown Naperville, Freedom Commons, Springbrook Prairie Pavilion, and the Route 59 and Ogden Avenue corridors. Naperville has over 11 automobile dealerships, and in October 2006, the city opened the country's first public–private partnership automobile test track, situated on a course, at a cost of $1.5 million. According to the 2019 American Community Survey, 77% of commuters drove, 11% took public transportation, and 8.6% worked from home. 22.1% of workers were employed in educational services, and health care and social assistance, 20.4% were employed in professional, scientific, and management, and administrative and waste management services, 10.3% in arts, entertainment, and recreation, and accommodation and food services, 9.7% in retail trade, and 9.5% in finance, insurance, and real estate and rental and leasing. According to the city's 2020 Comprehensive Annual Financial Report, the city's top ten employers are: Arts and culture Library The Naperville Public Library has three library branches within city limits. In 2020, there were 61,476 active cardholders, there were 728,147 total library visits, and there were 2,973,939 checkouts. The Naperville Public Library was founded when James Nichols, a Naperville resident, bequeathed $10,000 to the City Of Naperville, to establish a library after his passing. On September 22, 1898, the Nichols Library formally opened. Its collection comprised over 700 books. With the population of Naperville growing, the original location was running out of space. In 1983 a referendum was passed to build a new library, and the new Nichols Library opened on March 11, 1986. As the population increased, the need for a new branch was evident.